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Petroleum Instrument
Petroleum instruments refer to all kinds of instruments involved in oil production, refining, and testing. As a professional petroleum instrument manufacturer in China, Changji Geological Instrument Company specializes in producing various kinds of petroleum testing equipment, including open cup flash ...
Open Cup Flash Point Tester
Changji Geological Instrument Company is a professional open cup flash point tester manufacturer in China. We can produce a complete line of open cup flash point testers, including open cup flash point testers, cleveland open cup flash point testers, automatic cleveland open cup flash point testers, semi ...
Open Cup Flash Point Tester
SYD-267 This open cup flash point tester is suitable to the standard of GB/T267. It uses the open cup to test the flash point and fire point of lubricating oil and fuscous petroleum products. Technical Specifications Adjusting temperature continuously with controllable silicon. Electric stove ...
Cleveland Open Cup Flash Point Tester
SYD-3536 Our cleveland open cup flash point tester is suitable to the standards of GB/T3536. It uses the Cleveland open cup to test the flash point and fire point of petroleum product (except fuel and the petroleum products with open flash point <79℃). Reference standard: ISO2592, ASTMD92, IP36 Technical ...
Auto Cleveland Open Cup Flash Point Tester
SYD-3536A This open cup flash point tester is designed and made according to GB/T 3536, and suitable to test flash and fire point (except fuel oil and petroleum products open flash point bellow 79℃) Reference standard: ISO2592, ASTMD92, IP36 Technical Capability Auto programmable controlling temperature, ...
Semi Automatic Cleveland Open Cup Flash Point Tester
SYD-3536B TheinstrumentisdesignedandmadeaccordingtoGB/T3536,using the method of T0611(Cleveland Open Cup Flash Point method) which belongs to the standard of JTJ 052 “Highway engineering asphalt and asphalt mixer testing material stipulation” andsuitabletotestflashandfirepoint(exceptfueloilandpetroleumpro ...
Automatic COC Flash Point Tester
SYD-3536D This flash point tester is designed and made according to GB/T 3536, and suitable to test flash and fire point (except fuel oil and petroleum products open flash point bellow 79℃). Reference standard: ISO2592, ASTMD92, IP36 ...
Closed Cup Flash Point Tester
Flash point is generally measured by open cup tester and closed cup tester. "Open cup" tests are needed in some specifications and regulations, and are intended to mimic conditions in open spaces; however, "closed cup" tests are closer to most situations in restricted spaces. The test ...
PMCC Flash Point Tester
SYD-261 ThisinstrumentissuitabletothestandardsofGB/T261.Itusestheclosedcuptotesttheflashpointofliquid. Referencestandard:ISO2791,ASTMD93,IP34 TechnicalParameters of PMCC Flash Point Tester Electricautomaticstir Electricstoveheatingpower:600W Adjustingtemperaturecontinuouslywithcontrollablesilicon. ...
Auto PMCC Flash Point Tester
SYD-261A TheinstrumentisdesignedandmadeaccordingtoGB/T261,andsuitabletotestflashpointofpetroleumproducts. Referencestandard:ISO2719, ASTMD93, IP34 TechnicalParameters of Auto PMCC Flash Point Tester Autoprogrammablecontrollingtemperature,autocontrollingproceedoftestingflashpointandcount,analyze,store,printthetest ...
Semi automatic PMCC Flash Point Tester
SYD-261B TheinstrumentisdesignedandmadeaccordingtoGB/T261,andsuitabletotestclose cup flashpointofpetroleumproduct. The petroleum instrument can use with PC, have perfect system function software., can automatically control the temperature, automatically scan, fire, test, print, digital display (totally ...
Automatic PMCC Flash Point Tester
SYD-261D This instrument is suitable to the standards of GB/T261. It uses the closed cup to test the flash point of liquid. Reference standard: ISO2791, ASTMD93, IP34 ...
Engler Viscometer
Engler viscometer is an instrument used to determine the viscosity of lubricating oils, fuel oils and other petroleumproductsandliquids. As an experienced Engler viscometer manufacturer in China, Changji Geological Instrument Company produces three types of Engler viscometers, which are Engler viscometer ...
Engler Viscometer(Digital Displays)
WNE-1A Thisengler viscometerissuitabletothestandardsofGB/T266.Testtheviscosityofpetroleumproductsandotherliquids. Referencestandard:ASTMD1665,IP212 TechnicalParameters of Engler Viscometer StandardWaterline ...
Engler Viscometer (Double Units)
WNE-1B The engler viscometer is suitable to the standards of GB/T 266 and T 0622. Test the viscosity of emulsible asphaltum and coal asphaltum. In the prescriptive temperature condition, respectively test the time of 50ml asphaltum flows from prescriptive dimension of holes of two vessels, and show ...
Engler Viscometer(Digital Display)
WNE-1C Thisengler viscometerismade accordingtothestandardofGB/T266 "Engler Viscometer Testing method of Petroleum products",Industry standard T0622 "Engler Viscometer Testing method of Asphalt products". It is suitable for test time ratio, between flowing time (s.) for 200ml liquid ...
Water Content Tester
Changji Geological Instrument Company is a major water content tester manufacturer in China. We mainly specialize in producing and supplying water testers, automatic Karl Fischer Titrator, water content testers, water content testers(double units), and crude oil water content testers. These products are ...
Water Tester (Karl Fischer Method)
SYD-2122 This water testerisdesignedandproducedaccording to GB/T11133-89 "Test method of water content of liquid petroleum products (karl fischer)".Using the KarlFische reagent to test the water content of petroleum (water content 50 to 1000ρpm-ρpm as mg/g). TechnicalSpecification ...
Water Content Tester
SYD-260A ThisinstrumentissuitabletothestandardofGB/T260.Testthewateramountinpetroleumproducts,theresultshowsinpercents. TechnicalParameters of Water Content Tester Volumeofdistillingflask 500ml ...
Crude Oil Water Content Tester
SYD-8929 TheinstrumentissuitabletodeterminewatercontentincrudeoilaccordingtoGB/T8929,reportedaspersent. TechnicalParameters of Crude Oil Water Content Tester Distillationflask 1000ml ...
Water Content Tester(Double Units)
SYD-260 This water content tester is suitable to the standard of GB/T260. Test the water amount in petroleum products, the result shows in percents. TechnicalParameters of Water Content Tester Volumeofdistillingflask ...
Automatic Karl Fischer Titrator
SYD-2122B ThisinstrumentisdesignedandproducewithGB/T11133-89"TestMethodofWaterContentofLiquidPetroleumProducts(KarlFischer)".LCDdisplay,menuinterface,automatictestandprintdata. TechnicalSpecifications of Automatic Karl Fischer Titrator Measurerange ...
Kinematic Viscometer
Changji Geological Instrument Company is a renowned kinematic viscometer manufacturer and supplier in China. Our kinematic viscometers are produced according to GB/T265 and SY/T5651 standards. It is primarily used to test kinematic viscosity of liquid petroleum products under certain constant temperature. ...
Washing Capillary Machine
SYD-265-2 A washing capillary machine, a kind of petroleum equipment, is designed to clean the capillary viscometer of petroleum testing products. It can be used to clean all kinds of capillary: Ao Shi, Pin Shi, Wu Shi, Backwash, Fen Shi and so on, and glassware: graduate, cylinder, flask, matrass and ...
Kinematic Viscometer SYD-265B
Thiskinematic viscometerissuitabletothestandardofGB/T265.Testkinematicviscosityofliquidpetroleumproductsundercertainconstanttemperature. TechnicalParameters of Kinematic Viscometer Testingtemperature roomtemperature ...
Kinematic Viscometer SYD-265C
This kinematic viscometer is suitable to the standard of GB/T265. Test kinematic viscosity of liquid petroleum products under certain constant temperature. TechnicalParameters of Kinematic Viscometer Testingtemperature ...
Kinematic Viscometer (High Precision)
SYD-265D ThisinstrumentissuitabletothestandardsofGB/T265.Testkinematicviscosityofpetroleumproductsundercertainconstanttemperature. Referencestandard:ASTMD445,IP71 TechnicalParameters of Kinematic Viscometer Testingtemperature ...
Kinematic Viscometer (Digital Display)
SYD-265D-I This Kinematic viscometer is suitable to the standards of SY/T5651-93, GB/T265-88. Test the kinematic viscosity of liquid petroleum product (Newton liquid) under certain constant temperature. TechnicalParameters of Kinematic Viscometer ...
Asphaltum Kinematic Viscosity Tester
SYD-265E ThisinstrumentissuitabletothestandardofT0619-93.Testthekinematicviscosityofsampleundercertaintemperature. TechnicalParameters of Asphaltum Kinematic Viscosity Tester TestingTemperature roomtemperature~135℃ ...
Low Temperature Kinematic Viscometer
SYD-265G The low temperature Kinematic viscometer is according to the technical conditions rules of the people's public of china national standard designed and made, especially used to determine the kinematic viscosity of the petroleum products in some constant temperature conditions. Technical ...
Kinematic Viscometer SYD-265H
This Kinematic viscometer is suitable to the standards of SY/T 5651, GB/T 265. Test the kinematic viscosity of liquid petroleum product (Newton liquid) under certain constant temperature. Technical Parameters of Kinematic Viscometer Testing temperature ...
Distillation Tester
Changji Geological Instrument Company is a specialized distillation tester manufacturer in China. We have a variety of density testers to suit your distillation testing requirements of different petroleum products. Some of our products include vacuum distillation testers, benzene distillation testers, ...
Vacuum Distillation Tester
SYD-0165 Our vacuum distillation tester is designed and made as per the Industry Standard of Petrochemical SH/T0165 "Test Methods for Distillation Characteristics of High Boiling Point Petroleum Products at Reduced Pressure". It is specially designed for determining petroleum products of ...
Distillation Tester SYD-255
This distillation tester is suitable to the standard of GB/T255. Test the cuts composition of motor fuel, solvent oil and light degree petroleum products. TechnicalParameters of Distillation Tester Electric Stove Heating Power 1000W ...
Asphaltum Distillation Tester
SYD-255A This instrument is produced according to the standard of T0632-93. Test the content of the distillate of the asphaltum in the required temperature. Technical Parameters of Asphaltum Distillation Tester Electric Stove Heating Power 1000W ...
Distillation Tester SYD-255G
Our distillation tester is designed and made as per the National Standard GB/T7534-2004 "Test Methods for Distillation Characteristics of Volatile Organic liquids for Industrial Use". It is suitable to determine distillation characteristics of volatile organic liquids for industrial use, and ...
Benzene Distillation Tester (Low Temperature)
SYD-3146 Our benzene distillation tester is designed and made as per the National Standard GB/T3146 "Test Methods for Distillation Characteristics of Benzene". It is suitable to determine distillation characteristics of benzene. Technical Parameters of Benzene Distillation Tester ...
Distillation Tester(Front Mode)
SYD-6536 This distillation tester is suitable to the standards of GB/T6536 .Test the distilling property of car-used gas, air gas, jet fuel, solvent with special boiling point, coal oil diesel oil, cut fuel and similar petroleum products. Reference standard: ASTMD86 Technical Parameters of Distillation ...
Distillation Tester (Double Units)
SYD-6536A The distillation tester is designed and made according to regulations of the People's Republic of China standard GB/T 6536 "petroleum products-determination of distillation", and it is suitable to determinate the distillation of gasoline, aviation gasoline, jet fuel, solvent with ...
Distillation Tester(Low Temperature Double Units)
SYD-6536B This distillation tester is designed and product with GB/T6536 "Test Method of Petroleum Destination". Reference standard: ISO3405、ASTM D86 IP123 Technical Parameters of Distillation Tester Temperature range of cold bath 0-60℃ ...
Low Temperature Distillation Tester
SYD-6536C Our low temperature distillation tester is designed and made as per the National Standard GB/T6536 "Test Methods for Distillation Characteristics of Petroleum Products at Barometric Pressure". This petroleum instrument is suitable to determine distillation characteristics of gasoline, ...
Density Tester
SYD-1884 Our density tester is suitable to the standard of GB/T1884. Test the density of petroleum and liquid petroleum products. Technical Parameters of Density Tester Heating power 700W, 1000W Bath Volume ...
Rust and Corrosion Tester
Founded in 1998, Changji Geological Instrument Company is a major rust and corrosion tester manufacturer in China. Our primary rust and corrosion testers include jet fuel silver strip corrosion testers, LPG copper strip corrosion testers, lubricant oil hydraulic phase rust preventive character testers, ...
Jet Fuel Silver Strip Corrosion Tester
SYD-0023 Our jet fuel silver strip corrosion tester is designed and made as per SH/T 0023 "Test Methods for Jet Fuels Silver Sheet Corrosion" in the Industry Standard of People Republic of China. It is suitable to evaluate corrosion tendency of jet fuels to silver parts of turbine engine fuels ...
LPG Copper Strip Corrosion Tester
SYD-0232 This copper strip corrosion tester is suitable to the standard of SH/T0232-92. Technical Parameters of LPG Copper Strip Corrosion Tester Temperature Control Range room temperature~100℃ Temperature Control Accuracy ...
Lubricant Oil Hydraulic Phase Rust Preventive Character Tester
SYD-11143 This rust and corrosion tester is suitable to the standards of GB/T11143. Value the anti-rotten ability when the pressing agent of mineral oil, in particular motor oil, mix with water. Reference standard: ASTMD665, IP135 Technical Parameters of Lubricant Oil Hydraulic Phase Rust Preventive ...
Rust Tester (Copper
SYD-5096 This rust tester is suitable to the standards of GB/T5096, SH/T0023, GB/T11143. Value the rust extent of copper and silver in petrol and diesel oil. Value the anti-rotten ability when the pressing agent of mineral oil, in particular motor oil, mix with water. Technical Parameters of Rust Tester ...
Copper Strip Corrosion Tester
SYD-5096A This copper strip corrosion tester is suitable to the standards of GB/T5096. Test the rotten degree of air oil, spraying fuel, car-used gas, burning gas, solvent oil, coal oil, diesel oil, cut fuel oil and other petroleum to brass. Reference standard: ISO2160, ASTMD130, IP154 Technical Parameters ...
Sulphur Content Tester
Changji Geological Instrument Company, established in 1998, is a renowned sulphur content tester manufacturer in China. Our sulphur content testers are designed and manufactured to determine sulfur content in the petroleum products, like crude petroleum, petroleum, heavy oil, diesel oil, gasoline, and ...
X-ray Fluorescence Sulfur Tester
SYD-17040 Environment pollution is attracting more and more governments and public concern. The cry for protection to ecological environment and atmospheric environment is increasingly louder. The key culprit to atmospheric destruction and pollution is discharge of CO2 and SO2, which are from combustion ...
Sulphur Content Tester (Lamp Method SYD-380)
The sulphur content tester is suitable to the standard of GB/T380. Test the sulphur content of light petroleum products under Reid evaporation pressure 80000Pa. Technical Parameters of Sulphur Content Tester Group of three receivers ...
Sulphur Content Tester (Lamp Method SYD-380B)
This sulphur content tester is suitable to the standard of GB/T380. Test the sulphur content of light petroleum products under Reid evaporation pressure 80000Pa. Technical Parameters of Sulphur Content Tester Group of five absorption meter ...
Dark Petroleum Products Sulphur Content Tester (Tubular Oven Method)
SYD-387 Our dark petroleum products sulfur content tester (tube stove method) is designed according to the standard GB/T 387 . And it is suitable to determinate the sulphur content in dark petroleum products in conditions of GB/T387 regulations. This petroleum instrument composes of tubular oven, ...
Acid and Alkali Tester
We offer a wide range of acid and alkali testers to determine acid or alkali value of various petroleum products. For example, our alkali value tester is suitable to determine the alkaline components of petroleum products or additives. Our water solubility acid and alkali tester can be used to test the ...
Alkali Value Tester
SYD-0251 Our alkali value tester, as its name suggests, is an instrument used to is suitable to determine the alkaline components of petroleum products or additives. It is designed and produced according to the SH/T0251-93 standard. It mainly consists of ZD-2 automatic potentiometric titration meter ...
Water Solubility Acid and Alkali Tester
SYD-259 This acid and alkali tester is suitable to the standard of GB/T259. Test the water-solubility acid and alkali of additive, lubricating grease, paraffin. Technical Parameters of Water Solubility Acid and Alkali Tester Electrical Source 220V ...
Acid Number and Acidity Tester
SYD-264 This instrument is suitable to the standards of GB/T258-77, GB/T264-83 and GB/T7599-87. Technical Parameters of Acid Number and Acidity Tester Burette 2ml graduation is 0.02ml Power 220V 50Hz AC ...
Petroleum Products Acid Value Tester
SYD-264A Our petroleum products acid value tester is suitable to determine acid value of transformer oil and turbine oil. It is designed and made as per the National Standard GB/T264-83 "Test Methods for Acid Value of Petroleum Products". It takes a blue LCD for display. It can make determination, ...
Dropping Point Tester
Changji Geological Instrument Company is an ISO9001: 2000 dropping point tester manufacturer in China. Our dropping point tester (air bath) is suitable to determine dropping point of lubricating grease and solid hydrocarbon whose dropping points are over 100 ℃, and our dropping point tester(oil bath) ...
Dropping Point Tester (Air Bath)
SYD-270A This dropping point tester is designed and made as per Industry Standard SH/T0115 "Test Methods for Dropping Point of Lubricating Grease and Solid Hydrocarbon". The instrument is air bath, and it is suitable to determine dropping point of lubricating grease and solid hydrocarbon whose ...
Dropping Point Tester(Oil Bath)
SYD-4929A Our dropping point tester is composed of oil bath, constant temperature vat, heater, stirrer, floodlight, control box and so on. Advantage is that it is convenient to control the rising speed of temperature, easy to observe dropping, and it is also suitable for test of double-tube dropping. ...
Solidification Point Tester
Founded in 1998, we are an ISO9001:2000 certified solidification point tester manufacturer in China. Our solidification point testers are suitable to determine solidification point and pour point of petroleum products. To better meet customers’ various requirements, we provide a wide variety of ...
Automatic Solidification and Pour Point Tester
Our automatic solidification and pour point tester is designed and made as per GB/T510 "Test Methods for Solidification Point of Petroleum Products", and GB/T3535 "Test Methods for Pour Point of Petroleum Products". It is suitable to determine Solidification point and pour point of ...
Solification Point Tester SYD-510-1
Our solidification point tester is designed and made the National Standard GB/T510 "Test Methods for Solidifying Point of Petroleum Products". It is suitable to determine solidifying point of petroleum products. Technical Parameters of Solidification Point Tester ...
Pour and Cloud Point Tester
SYD-510D Our pour and cloud point tester is suitable to the standards of GB/T3535, GB/T6986, GB/T510, SH/T0248. Reference standard: ASTMD97, ASTMD2500 Technical Parameters of Pour and Cloud Point Tester Power 1000W double ...
Solidification and Cold Filter Plugging Point Tester SYD-510E
Our solidification and cold filter plugging point tester is designed and made as per the National Standard of People's Republic of China –GB/T510 "Test Methods for Solidifying Point of Petroleum Products" and Industry Standard of People's Republic of China SH/T0248 "Test Methods for ...
Multifunctional Low Temperature Tester
SYD-510F1 Our multifunctional low temperature tester is designed and made as per National Standard -GB/T510 "Test Methods for Solidifying Point of Petroleum Products", GB/T3535 "Test Methods for Pouring Point of Petroleum Products" and GB/T6986 "Test Methods for Cloud Point of ...
Solidification Point Tester SYD-510G
Our solidification tester is used to test solidification point of lubricating oil and heavy color petroleum products as per GB /T510-83. Technical Parameters of Solidification Point Tester Power 1000W Single slot, double ...
Solidification and Cold Filter Plugging Point Tester SYD-510G-I
Our solidification and cold filter plugging point tester is designed and made as per the National Standard GB/T510 "Test Methods for Solidifying Point of Petroleum Products", and Industry Standard of Petrochemical SH/T0248 "Test Methods for Cold Filter Plugging Point of Distillate Fuels". ...
Solidification Point Tester SYD-510G-II
Our solidification point tester is designed and made as per the National Standard GB/T510 "Test Methods for Solidification Point of Petroleum Products". It is suitable to determine solidification point of petroleum products. Features of Solidification Point Tester 1. Integrated best design ...
Freezing Point Tester
SYD-2430 Our freezing point tester is designed and manufactured according to the GB/T 2430, GB/T 3145, SH/T 0090, and to choose different configure, may determinate jet fuel freezing point, engine refrigeration oil freezing point and benzene crystallization point, and it is a multifunctional freezing ...
Demulsified Character Tester
Changji Geological Instrument Company is a China-based demulsified character tester manufacturer and supplier. Our demulsified character testers are suitable to determine the separation ability of petroleum oils and synthetic fluids from water. Our petroleum oil and synthetic fluid demulsibility character ...
Petroleum and Synthetic Fluid Emulsified Character Tester
SYD-7305 This instrument is test the separability from water of petroleum and synthetic liquid as per ASTM D1401, IP19, GB /T7305 "Standard Test Method for Characteristic of Preventing Emulsification of Petroleum and Synthetic Liquid". Reference standard: ASTMD1401 Technical Parameters of ...
Petroleum Oil and Synthetic Fluid Demulsibility Character Tester
SYD-7305A The petroleum oil and synthetic fluid demulsibility character tester is designed and made as per the National Standard GB/T7305-87 "Test Methods for Demulsibility Characteristics of Petroleum Oils and Synthetic Fluids", and GB/T7605-87 "Test Methods for Demulsibility Characteristics ...
Ash Tester
SYD-508 Our ash tester is used to test the ash of petroleum products as per GB/T 508-85 "Standard Test Method for Ash of Petroleum Products", but it is neither suitable for samples containing raw additive, nor for the lubricating oil containing lead and bent axle box which has been used. Technical ...
Aniline Point Tester
We are an experienced aniline point tester manufacturer and supplier in China. We offer two models of aniline point testers for you to choose from, which are SYD-262 and SYD-262A. These products are manufactured in accordance with GB/T 262 standard. They are specially used to determine the aniline point ...
Aniline Point Tester SYD-262
Our aniline point tester is designed and produce with GB/T262 "Test Method for Aniline Point of Petroleum Products". Technical Parameters of Aniline Point Tester Measure range Room temperature~150℃ Rotating ...
Aniline Point Tester SYD-262A
Our aniline point tester is designed and made as per the National Standard GB/T262 "Test Methods for Aniline Point of Petroleum Products'. It is suitable to determine aniline point of light petroleum products and dark petroleum products. Technical Characteristics of Aniline Point Tester 1. It ...
Carbon Residue Tester
Established in 1998, Changji Geological Instrument Company is a professional carbon residue tester manufacturer in China. Our petroleum products carbon residue tester (conradson methods) and carbon residue tester (digital control electrical stove method) are respectively conforming to GB/T268 and SH/T0170 ...
Petroleum Products Carbon Residue Tester(Conradson Method)
SYD-268 Our carbon residue tester is designed and made as per the National Standard GB/T268. It is suitable to determine coke black residue formed after petroleum products is evaporated under heating. Main Configurations of Petroleum Products Carbon Residue Tester ...
Carbon Residue Tester(Digital Control Electrical Stove Method)
SYD-30011 This carbon residue tester is suitable to the standard of SH/T0170.Test the remained carbon for lubricating oil heavy-mass liquid or other petroleum products. Technical Parameters of Carbon Residue Tester Digital displays one stove, four holes ...
Self-ignition Point Tester
SYD-706 Our self-ignition point tester is designed and made as per DL/T 706-99, and IEC 79-4:95. It is used to determine the lowest temperature when fire resistant oil combusts in a flask. Characteristics High precise and intelligent temperature control; evenly heating; reasonable structure; accurate; ...
Air Release Value Tester
SYD-0308 Our air release value tester is designed and made according to SH/T0308-92. It is used to determine air release value of fire resistant oil, hydraulic oil, turbine oil and other petroleum products. It includes heat-resistant test tube, circulation bath, air bath, air pressure controlling system, ...
Resistivity Tester
SYD-421A Our resistivity tester is designed and made as per DL421-91. It is used to determine volume resistivity of insulating oil and other liquid medium. It can also be used to determine volume resistivity of fire resistant oil and solid substance. For fire resistant oil and other low temperature ...
Salt Content Tester
SYD-6532 Our salt content tester is designed and made as per the National Standard of People's Republic of China GB/T6532 "Test Methods for Salt Content of Crude Petroleum and Petroleum Products". It is used to determine total amount of halides (concentration from 0.002% to 0.02%) in the ...
Hydrometer
SYD-1884 Our hydrometer is designed and manufactured according to the GB/T1884-2000 standard. It is ideally suited for determining the density of petroleum products and liquid petroleum products. Working Conditions Ambient temperature: -10 ℃ ~ +40 ℃, ambient temperature changes should not ...
Interfacial Tension Tester
SYD-6541A Our interfacial tension tester is designed and made as per GB/T6541-86 (1991) "Petroleum products-mineral Oils-Determination of interfacial tension of oil against water-ring method" of National Standard of People Republic of China. It is suitable to measure the interfacial tension ...
Grease Steel Net Oil Separation Tester
SYD-0324 Our grease steel net oil separation tester is suitable to determination of Grease Steel Net Oil-Separating (static state), conforming to the standard of SH/T 0324-92. Technical Parameters of Grease Steel Net Oil Separation Tester Stainless Steel Net ...
Foam Tester
SYD-12579 Our foam tester is suitable to the standards of GB/T12579. Test the foaming characteristics of the engine oil, gear oil and hydraulic oil. Reference standard: ASTMD892 and IP146 Technical Parameters of Foam Tester 1.Constant Temperature Bath ...
Existent Gum Tester
Founded in 1998, Changji Geological Instrument Company is an experienced existent gum tester manufacturer and supplier in China. Our existent gum tester SYD-509A and existent gum tester SYD-8019 are respectively designed and produced according to the GB/T 509 and GB/T8019 standards. They are particular ...
Existent Gum Tester SYD-509A
This instrument is suitable to the standard of GB/T509. Test the glue material tendency formed in evaporation of gas, fuel oil and diesel oil. Technical Parameters of Existent Gum Tester Electrical Heating Power 1000W Temperature ...
Existent Gum Tester SYD-8019
Our existent gum tester is according to the technical condition rules of the people's republic of china national standard "GB/T 8019 motor gasoline and aviation fuels-determination of existent gum-jet evaporation method" designed and made, especially used to determine the existent gum in gasoline ...
Mercaptan Sulphur Tester
SYD-1792 Our mercaptan sulphur tester is designed and manufactured according to the GB/T1792 standard. It is suitable to measure the mercaptan sulphur (content 0.0003-0.01% mm) in the jet fuel, gasoline, kerosene and light diesel oil which contain no hydrogen sulfide. Our mercaptan sulphur tester is ...
Degassing Oscillator
SYD-17623 Our degassing oscillator is designed and made as per the National Standard GB/T17623 "Test Methods for Componental Contents of Gases Dissolved in Insulating Oil by Gas Chromatography Method". It is suitable to separate gas dissolved in the insulating oil by oscillation methods. Technical ...
Jet Washing Machine
SYD-511-01 Our jet washing machine is a new patent instrument (patent No.: 200620089838.3) used to clean glassware of petroleum instruments. It is mainly used during mechanical impurity determination. The hot solvent oil can sprayed out automatically. It changes time-wasting and laborious tradition ...
Naphthaline Crystallization Point Tester
Main Characteristics 1. Our Naphthaline crystallization point tester can control the test temperature of the water bath and display the temperature on the LCD. 2. It can stir the test sample by an electromagnetic device. The stirring frequency can be set continuously. 3. Adopt double tubes working ...
Colour Comparator
SYD-0168 Our colour comparator is used to determine the chroma of petroleum products just like lubricating oil, kerosene and diesel oil as per ASTM D1500, ISO 2049, IP 196 and GB/T 6540, SH/T 0168. Technical Specifications of Colour Comparator 1. Color No. ...
Insulating Oil Voltage Withstand Tester
SYD-507 Our insulating oil voltage withstand tester is designed and made as per the national standard GB/T507 "Insulating liquids-Determination of the breakdown voltage at the power frequency", it is widely used in railway, aviation, power, petroleum, academy and others trade. Technical ...
Vapor Pressure Tester
Changji Geological Instrument Company is a professional vapor pressure tester manufacturer in China. We are engaged in producing and supplying vapor pressure testers and petroleum products vapor pressure testers. They are designed and manufactured to the GB/T8017 standard, and are suitable to test the ...
Vapor Pressure Tester(Reid Method)
SYD-8017 Our vapor pressure tester is used to test the steam pressure. It is designed according to the standard of GB/T 8017. Test the steam pressure of petroleum, volatile base oil and other volatile petroleum products. This instrument consists of temperature control equipment, pressure bomb and manometer. Technical ...
Petroleum Products Vapor Pressure Tester(Reid Methods)
SYD-8017A Our petroleum products vapor pressure tester is designed and made as per the National Standard GB/T 8017 "Test Methods for Vapor Pressure of Petroleum Products (Reid Methods)". It is suitable to determine vapor pressure of gasoline, volatile petroleum and other volatile petroleum ...
Oxidation Stability Tester
Changji Geological Instrument Company is a specialized oxidation stability tester manufacturer and supplier in China. Through our years of consistent efforts, we have received the ISO9001:2000 certificate. To meet your different applications, we offer several types of products for you to choose from. ...
Distillate Fuel Oil Oxidation Stability Tester
Our distillate fuel oil oxidation stability tester is designed and made as per the stipulation in the Petroleum and Chemical Industry Standard of People's Republic of China SH/T 0175 "Test Methods for Oxidation Stability of Distillate Fuel Oil". Test method according to ASTM D2274 and ISO 12205 ...
Automatic Lubricating Oil Oxidation Stability Tester(Rotary Oxygen Bomb Methods)
SYD-0193 Our lubricating oil oxidation stability tester is designed and made as per SH/T0193 and ASTM D2272. It is suitable to determine oxidation stability of new or in service turbine oil, which has the same components (base oil and additive). It is also a rapid method for determining the oxygen stability ...
Gasoline Oxidation Stability Tester (Induction Period Method)
SYD-8018D Our gasoline oxidation stability tester is used to test the oxidation stability of gasoline as it is being oxidized as per GB/T 8018-87 "Standard Test Method for Oxidation Stability of Gasoline (Induction Period Method)". Technical Parameters of Gasoline Oxidation Stability Tester ...
Mechanical Impurity Tester
Changji Geological Instrument Company is a Chinese mechanical impurity tester manufacturer and supplier. Our mechanical impurity testers are designed according to the GB/T511 standard, and can be used to test the mechanical impurity of heavy oil, lubricating oil and additives. They are easy to operate ...
Highway and Bitumen Instrument
With more and more roads constructed, the demand for highway material testing equipment is growing. Seeing the potential market for highway material testing equipment, we began to make various kinds of highway instruments. In general, our highway instruments can be divided into three categories, which ...
Softening Point Tester
Changji Geological Instrument Company is a Chinese softening point tester manufacturer and supplier, established in 1998. With years of experience and continued efforts, we are able to provide high quality oil and asphalt softening point testers and automatic asphalt softening point testers at competitive ...
Oil and Asphalt Softening Point Tester
SYD-2806 Our oil and asphalt softening point tester is suitable to determine the softening and deformation of asphalt when heated. It is designed and made in accordance with the national standard GB/T4507 "Test Methods for Softening Point of Asphalt". Related Standards: ASTMD36, IP58 Technical ...
Automatic Asphalt Softening Point Tester SYD-2806E
Our automatic asphalt softening point tester is built as per the national standard GB/T4507 "Test Methods for Softening Point of Asphalt". It can be used to determine the softening point of petroleum asphalt, coal pitch, liquid petroleum asphalt and other asphalts. This asphalt softening point ...
Automatic Asphalt Softening Point Tester SYD-2806F
This asphalt softening point tester is designed and produced to determine the softening point of petroleum asphalt, coal pitch, liquid petroleum asphalt, and other asphalts. It is the ideal softening point tester for asphalt manufacturers, highway and bridge construction units, colleges, and research ...
Automatic Asphalt Softening Point Tester SYD-2806G
This automatic asphalt softening point tester can be used to determine the softening point of petroleum asphalt, coal pitch, liquid petroleum asphalt, and other asphalts. It is the ideal instrument for asphalt manufacturers, highway and bridge construction units, colleges, and research institutes. Features ...
Automatic Asphalt Softening Point Tester SYD-2806H
Our asphalt softening point tester is designed and made according to the national standard GB/T4507 "Test Methods for Softening Point of Asphalt". It is applicable to asphalt softening point determination of petroleum asphalt, coal pitch, liquid petroleum, and other asphalts. This instrument ...
Wax Content Tester
SYD-0615 Our wax content tester is designed and manufactured as per standard SH/T0425 "Test Methods for Wax Content of Asphalt". It is suitable to determine wax content in the petroleum asphalt, and is the ideal instrument for petrochemical, highway construction, and other industries. Main ...
Rolling Thin Film Oven
Established in 1998, Changji Geological Instrument Company is a China manufacturer and supplier of rolling thin film oven. We have passed the ISO9001: 2000 certification as a result of our years of hard work. Our asphalt rolling thin film ovens are made in accordance with T0609-1993 requirements of the ...
Asphalt Rolling Thin Film Oven (82 Model)
SYD-0609 Our asphalt rolling thin film oven is designed and made as per T0609-1993 "Asphalt Thin Film Heating Test" of JTJ052-2000 industry standard. This instrument can be used to determine mass loss of petroleum asphalt thin film after being heated. According to your requirement, it can also ...
Asphalt Rolling Thin Film Oven (85 Model)
SYD-0610 This asphalt rolling thin film oven is suitable to determine mass loss of the heated petroleum asphalt thin film, and can determine the changes of penetration, viscosity, ductility, and breaking point of asphalt residues after the thin film has been heated to evaluate the anti-aging performance ...
Standard Viscometer
SYD-0621 Our standard viscometer is designed and manufactured as per T0621 "Asphalt Standard Viscosity Test" of industry standard JTJ052 "Specification and Test Methods of Bitumen and Bituminous Mixture for Highway Engineering". It is primarily used to determine the viscosity of flowing ...
Breaking Point Tester
Changji Geological Instrument Company is an ISO9001: 2000 certified breaking point tester manufacturer in China. Our breaking point testers are designed and made according to T0613 specified requirements of national industry standard JTJ052. They are mainly used to determine Fraass Breaking Point of bituminous ...
Asphalt Breaking Point Tester
SYD-0613 Our asphalt breaking point tester is manufactured in accordance with T0613 "Asphalt Breaking Point" of industry standard JTJ052 " Specification and Test Methods of Bitumen and Bituminous Mixture for Highway Engineering". It designed to determine Fraass Breaking Point of bituminous ...
Automatic Asphalt Breaking Point Tester
SYD-0613A Our automatic asphalt breaking point is designed and manufactured to determine Fraass Breaking Point of bituminous materials. It can make determination for 3 pieces of samples at the same time, and can calculate the average value of the three test data. This instrument uses computer to control ...
Bitumen Flash Point Tester
Our bitumen flash point tester is made as per T0633 "Liquid Petroleum Asphalt Flash Point Test (Tag Open Cup Methods)" of the industry standard JTJ052 "Specification and Test Methods of Bitumen and Bituminous Mixture for Highway Engineering". This instrument is widely used to determine ...
Slurry Tester
Changji Geological Instrument Company is a renowned slurry tester manufacturer and supplier in China. Through our years of development, we can provide a wide variety of slurry testers, such as slurry viscometers, slurry sediment concentration testers, slurry hydrometers, slurry water loss testers, slurry ...
Slurry Viscometer
1006 Our slurry viscometer is suitable to determine the viscosity of slurry at the drilling site or in the laboratory. The viscosity is expressed by the time used to outflow 500mm3 slurry from a viscometer. The unit is second. Technical Specifications 1. Effuse tube: Diameter: 5 mm, Length: 100 mm 2. ...
Slurry Sediment Concentration Tester
NA-1 Our slurry sediment concentration tester is used to determine the sand content at the drilling site or in the laboratory. The sand content is determined by the volume change of slurry before and the slurry filtered. It is expressed by percentage. Technical Specifications ...
Slurry Hydrometer
NB-1 Our slurry hydrometer is designed to determine the weight of slurry at the drilling site or in the laboratory. The unit is g/cm3. Technical Specifications of Slurry Hydrometer 1. Measurement range 0.96~3g/cm3 2. Measurement ...
Slurry Water Loss Tester
NS-1 Our slurry water loss tester can be used to measure water loss of slurry at the drilling site or in the laboratory. The water loss is the filtrate that flows out from certain volume slurry under specified air pressure. Technical Specifications of Slurry Water Loss Tester ...
Slurry Test Box(Four Suit)
NY-1 Our slurry test box is mainly composed of NA-1 sand content tester, NS-1 water loss tester, NB-1 slurry gravimeter and 1006 type slurry viscometer. ...
Slurry Test Box(Three Suit)
NY-1A This slurry test box consists of a NA-1 sand content tester, NB-1 slurry gravimeter and 1006 type slurry viscometer. ...
Slurry Static Shear Tester
Our slurry static shear tester is mainly used to determine the static shear force of slurry at the drilling site or in the laboratory. The unit is mg/cm3. It is determined as the angle that a cylinder (hanged by a steel wire of known rigidity) deviates in the slurry cup. Technical Specifications of Slurry ...
Wheel Track Tester
As a professional wheel track tester manufacturer in China, we provide different types of wheel track testers for you to choose from. Our automatic wheel track testers are designed and produced as per T0719 specified requirements of national industry standard JTJ052. They are mainly used to determine ...
Hydraulic Wheel Track Tester
SYD-0703 Our hydraulic wheel track tester is designed and manufactured according to T0703 "Bituminous Mixture Test Sample Making Methods" of the industry standard JTJ052. It is usually used together with wheel tractor, and suitable to make samples for wheel track test. Technical Specifications ...
Automatic Wheel Track Tester(Universal Type)
SYD-0719 Our automatic wheel track tester is designed and manufactured to determine the rutting resistance of bituminous mixture at high temperature. In addition, it can also be used as an auxiliary equipment for tracking the bituminous mixture ratio. Technical Specifications of Automatic Wheel Track ...
Automatic Wheel Track Tester(Research Type)
SYD-0719A This wheel track tester is developed to determine the rutting resistance of bituminous mixture at high temperature. As a research type product, it is mainly used by colleges, universities, and research institutes. Besides, it can also be used by manufacturing companies and construction companies. Main ...
Striking Instrument
We are a professional striking instrument manufacturer and supplier in China. To satisfy your different requirements, we provide several types of striking instruments for your choice. Our CNC Multi-function electric striking instrument is suitable for light compaction test or heavy compaction test in ...
CNC Multi-function Electric Striking Instrument
SYD-0131 Our CNC electric striking instrument is designed and produced in accordance with T0131 "Compaction Test Standard" of the industry standard JTJ052 "Specification and Test Methods of Bitumen and Bituminous Mixture for Highway Engineering". It is widely used for light compaction ...
Mashall Electric Striking Instrument
SYD-0702 Our Mashall electric striking instrument, as it name implies, is an instrument used to make test sample for bituminous mixture Marshall test. It is made according to T0702 "Bituminous Mixture Test Sample Making Methods" of industry standard JTJ052. Technical Specifications of Mashall ...
Mashall Electric Striking Instrument(One Large Pony )
SYD-0702A This striking instrument is made as per T0702 "Bituminous Mixture Test Sample Making Methods" of industry standard JTJ052. The test sample produced by this instrument conforms to JTJ052 T0709 "Bituminous Mixture Marshall Stability Test". It is the specialized equipment ...
Mixtures Stirrer
SYD-F02-20 Our mixtures stirrer is made according to the standard JTJ052-200 "Specification and Test Methods of Bitumen and Bituminous Mixture for Highway Engineering". It is the ideal blending instrument used to make samples of asphalt sand mixtures or cement sand mixtures. Characterized by ...
Ductility Tester
Founded in 1998, Changji Geological Instrument Company is an ISO9001:2000 certified ductility tester manufacturer in China. Several models of asphalt ductility testers are available for you to choose from. Our ductility testers are mainly used to determine the length of petroleum asphalt when it is stretched ...
Asphalt Ductility Tester SYD-4508A
This asphalt ductility tester is designed and produced to determine the length of petroleum asphalt when it is stretched to break at certain speed under stipulated condition and temperature. Configurations 1. "SYD-4508A or SYD-4508B asphalt ductility tester" host 2. Asphalt test mold (3 ...
Asphalt Ductility Tester SYD-4508C
Our asphalt ductility tester is designed on the basis of the internationally advanced ductility testers. It is mainly used to determine the length of petroleum asphalt when it is stretched to break at certain speed under stipulated conditions and temperature. This instrument can make determination for ...
Asphalt Ductility Tester SYD-4508D
This asphalt ductility tester is designed and produced as per GB/T4508 "Test Methods for Ductility of Petroleum Asphalt", and T0605 "Asphalt Ductility Test" of the industry standard JTJ052. This instrument is suitable to determine the length of petroleum asphalt when it is stretched ...
Asphalt Ductility Tester SYD-4508F
This ductility tester is mainly used to determine the length of petroleum asphalt when it is stretched to break at certain speed under stipulated conditions and temperature. Characteristics of Asphalt Ductility Tester 1. It is of advanced design, integrating the latest design concepts of ductility testers ...
Asphalt Ductility Tester SYD-4508G
This asphalt ductility tester is mainly used to determine the length of petroleum asphalt when it is stretched to break at certain speed under stipulated conditions and temperature. This instrument is designed and manufactured in accordance with GB/T4508 "Test Methods for Ductility of Petroleum Asphalt", ...
Penetrometer
As an experienced penetrometer manufacturer in China, Changji Geological Instrument Company has been engaged in producing and supplying penetrometer since 1998. We know how to produce a reliable penetrometer. To suit various demands of our customers, we produce a wide range of penetrometer for you to ...
Penetrometer SYD-2801A
This penetrometer is designed and made according to GB/T269 "Test Methods for Cone Penetration of Lubricating Grease and Petroleum Grease", GB/T4509 "Test Methods for Needle Penetration of Petroleum Asphalt" and T0604 "Asphalt Penetration Test". It is suitable to determine ...
Penetrometer(Bath Model)
SYD-2801C This penetrometer is designed and made according to the related national standards. It is mainly used to determine the penetration of asphalt and lubricating grease. Besides, our penetrometer can also be used to test solid granule, powder, colloid and other materials, and inspect cream, glycine, ...
Penetrometer SYD-2801E
This penetrometer is designed and manufactured as per the national standard GB/T4509 "Test Methods for Needle Penetration of Petroleum Asphalt" and the industry standard T0604 "Asphalt Needle Penetration Test". It is primarily used to determine penetration of petroleum asphalt and ...
Penetrometer SYD-2801E1
This instrument is suitable to determine penetration of petroleum asphalt, modified asphalt, liquid petroleum asphalt, and the residues after evaporation of emulsified asphalt. Features 1. The penetrometer is newly designed, featuring advanced design and appealing appearance. 2. For hoisting mechanism, ...
Low Temperature Penetrometer
SYD-2801F This penetrometer is designed and made according to the national standard GB/T4509 "Test Methods for Needle Penetration of Petroleum Asphalt" and T0604 "Asphalt Needle Penetration Test" of the industry standard JTJ052 "Specification and Test Methods of Bitumen and ...
Penetrometer (Paraffin Test
SYD-2801G This penetrometer is designed and produced according to the national standard GB/T4985 "Test Methods for Needle Penetration of Wax". 1. The penetration of wax is the depth that a standard 100g needle vertically penetrates into a wax sample in 5s. 2. Generally, the temperature for ...
Automatic Penetrometer
SYD-2801I ...
Centrifugal Extraction Instrument
Changji Geological Instrument Company is a Chinese centrifugal extraction instrument manufacturer. Our major products include digital computer control high speed centrifugal extraction instrument SYD-0722 and digital computer control high speed centrifugal extraction instrument SYD-0722A. They are mainly ...
Digital Computer Control High Speed Centrifugal Extraction Instrument SYD-0722
This high speed centrifugal extraction instrument is designed and produced according to T0722 "Bituminous Mixture Bitumen Content Test" of the industry standard JTJ052 "Specification and Test Methods of Bitumen and Bituminous Mixture for Highway Engineering". Technical Specifications ...
Digital Computer Control High Speed Centrifugal Extraction Instrument SYD-0722A
This high speed centrifugal extraction instrument can extract asphalt component in the bituminous mixture using high speed centrifugal separation methods to rapidly determine the asphalt-aggregate ratio, and screen the aggregate. Features 1. The instrument has the functions of asphalt extraction and ...
Dynamic Viscometer
SYD-0620A Our dynamic viscometer is designed and made according to the industry standard T0620 "Asphalt Dynamic Viscosity Test" and petrochemical standard SH/0557"Test Methods for Viscosity of Petroleum Asphalt. This instrument is suitable to determine the dynamic viscosity of petroleum ...
Saybolt Viscometer
SYD-0623 Our Saybolt viscometer is suitable to determine the viscosity of viscous petroleum asphalt and liquid petroleum asphalt and decide asphalt construction temperature. It is made in accordance with T0623 "Asphalt Saybolt Viscosity Test" of the industry standard "Specification and ...
Lime Content Tester
NSF-1 Our lime content tester, which is designed and made according to the national standard GB/T14684-2001 "Specification for Sand Used in Construction", is widely used to determine the limestone powder content in the laboratories of construction and traffic department. It is mainly composed ...
Tenacity Tester
SYD-0624 Our tenacity tester is suitable to determine tenacity of asphalt under specific conditions, and thus evaluate modified effects of asphalt after adding modified agents. This instrument is made according to petrochemical standard SH/T0735 "Asphalt Tenacity Test" and the T0624 "Asphalt ...
Pressure Ageing System
PAV-1 Our pressure aging system is designed and made as per ASTM PS36 and AADHTO PPI standards. It is suitable to evaluate asphalt aging conditions in the natural environment. 1. PAV-1-1 Asphalt Pressure Aging Oven 1. Dragging speed 500mm/min±10mm ...
Mashall Stability Tester
We are a Mashall stability tester manufacturer in China. Our mashall stability testers is used for bituminous mixture Mashall stability test, and can determine accurately determine the breaking point of bituminous mixture for ratio design of bituminous mixture and asphalt road surface quality inspection. Featuring ...
Mashall Stability Tester
SYD-0709 Our mashall stability tester is designed and manufactured in accordance with T0709 "Bituminous Mixture Marshall Stability Test" of the industry standard JTJ052 " Specification and Test Methods of Bitumen and Bituminous Mixture for Highway Engineering". This instrument is ...
Automatic Mashall Stability Tester
SYD-0709A This automatic mashall stability tester can accurately determine the breaking point of bituminous mixture, and thus used for ratio design of bituminous mixture and inspection of asphalt road quality. Equipped with RS232 serial port, the instrument can conveniently communicated with a computer, ...
Asphalt Content Tester
SYD-6307 Our asphalt content tester is used to determine asphalt content by combustion method. It is environment-friendly, safe, and accurate. The instrument is manufactured according to ASTM D6307/98, AASHTO IP53-95 and BS DD250 standards. Technical Specifications of Asphalt Content Tester ...
Emulsified Bitumen
As an ISO9001:2000 certified emulsified bitumen instrument manufacturer and supplier in China, we are able to produce various kinds of reliable emulsified bitumen testers for your different applications. Our emulsified asphalt particle ion charge tester is widely used to determine electric charge characteristics ...
Emulsified Asphalt Particle Ion Charge Tester
SYD-0653 Our emulsified asphalt particle ion charge tester is manufactured according to T0653 "Emulsified Asphalt Particle Charge Test" of the industry standard JTJ052 "Specification and Test Methods of Bitumen and Bituminous Mixture for Highway Engineering". This instrument is suitable ...
Emulsified Asphalt Mineral Aggregate Adhesion Tester
SYD-0654 Our emulsified asphalt mineral aggregate adhesion tester is produced according to T0654 "Emulsified Asphalt Coating Test" of the industry standard JTJ052 "Specification and Test Methods of Bitumen and Bituminous Mixture for Highway Engineering". This instrument is primarily ...
Emulsified Asphalt Storage Stability Tester
SYD-0655 This emulsified asphalt storage stability tester is suitable to determine storage stability of emulsified asphalts. The instrument is produced in accordance with T0655 "Emulsified Asphalt Storage Stability Test" of the industry standard JTJ052 Specification and Test Methods of Bitumen ...
Emulsified Asphalt Grade Tester
SYD-0751 Our emulsified asphalt grade tester is made according to T0751 "Emulsified Asphalt Slurry Seal Mixture Consistency Test" of the industry standard JTJ052 "Specification and Test Methods of Bitumen and Bituminous Mixture for Highway Engineering". The instrument uses a stipulated ...
Wet Wheel Abrasion Loss
SYD-0752 Our wet wheel abrasion loss tester is designed to determine abrasion resistance of shaped emulsified asphalt slurry seal mixture. It, together with loading wheel rolling tester, can be used to determine the optimum asphalt content in the slurry seal mixture. Technical Specifications of Wet ...
Rolling Tester
SYD-0755 Our rolling tester is designed to determine asphalt quantity in the emulsified asphalt slurry mixture to ascertain whether the asphalt is too much, and thus control the upper limit for asphalt used. It is used together with wet wheel abrasion tester to find the optimum asphalt quantity in the ...
Cohesion Tester
SYD-0754 Our cohesion tester is designed and made to determine the cohesion between emulsion and aggregate, and thereby decide the time highway can be used after slurry seal construction. It is the key instrument used in emulsified asphalt slurry seal mixture ratio test. This portable cohesion tester ...
Four Component Chemical Asphalt Tester
SYD-0618 Our four component chemical asphalt tester is suitable to four component analysis of pavement petroleum asphalt using solvent precipitation test or chromatographic column method. This instrument is designed and produced according to T0618 "Asphalt Chemical Component Test" of JTJ052 ...
Asphalt Density Tester
SYD-0711A Our asphalt density tester can be used to determine the theoretical maximum relative density of asphalt mixture using vacuum method, which help design asphalt mixture ratio and calculate the void ratio and compaction for road condition investigation and quality management of road surface construction. ...
Floating Tester
SYD-0631 Our floating tester is used to determine the floatability of residue left after distillation of petroleum asphalt and coal pitch. This instrument is designed and made according to T0631 "Asphalt Float Test" of JTJ052 "Specification and Test Methods of Bitumen and Bituminous Mixture ...
Sand Equivalent Weight Tester
SYD-0334 The sand equivalent weight tester is designed and produced as per T0334 'Fine Aggregate Sand Equivalent Test" of the industry standard JTJ 058 "Specification and Test Methods of Aggregate for Highway Engineering". It vibrates samples through an automatic vibrator, and can determine ...
Gyratory Compactor
SYD-XY150 Our gyratory compactor is used to make cylindrical test sample of hot-mix bituminous mixture by kneading methods under a constant pressure, at a fixed compaction angle and a fixed compaction speed. This instrument is in accordance with the requirements of SUPERPAVE specification of FHWA, with ...
Laboratory Instrument
Changji Geological Instrument Company is a professional laboratory instrument manufacturer, founded in 1998. We provide customers with a wide range of laboratory instruments, including oxygen bomb calorimeter, rotational viscometer, water bath, electrical hygrometer, paint-4 viscometer, oil bath, and ...
Oxygen Bomb Calorimeter
Changji Geological Instrument Company is a Chinese oxygen bomb calorimeter manufacturer. To fulfill your different needs, we provide several kinds of oxygen bomb calorimeter for you to choose from, including digital display oxygen bomb calorimeter, microcomputer oxygen bomb calorimeter, PC oxygen bomb ...
Oxygenator
CY-1 Our oxygenator is specially designed for XYR-1 serial Calorimeter. It is of novel design, elegant appearance and can be conveniently used. ...
Digital Display Oxygen Bomb Calorimeter
XRY-1A This digital display oxygen bomb calorimeter is used to test the heat of solid and liquid, such as coal, coke, oil and alcohol. Technical Specifications of Oxygen Bomb Calorimeter Single Chip Microprocessor Digital Displays; ...
Microcomputer Oxygen Bomb Calorimeter
XRY-1B Our microcomputer oxygen bomb calorimeter is suitable to determine the caloric of solid and liquid, such as coal, coke, petroleum and alcohol. It usually applies to coal mine, heat engine plant, cement, glass factory, and colleges and universities. Characteristics of Microcomputer Oxygen Bomb ...
PC Oxygen Bomb Calorimeter
XRY-1C Our PC oxygen bomb calorimeter is used for determining the caloric of solid and liquid, such as coal, coke, petroleum and alcohol. It widely applies to coal mine, heat engine plant, cement, glass factory, as well as colleges and universities. Characteristics of PC Oxygen Bomb Calorimeter ...
Automatic Oxygen Bomb Calorimeter
XRY-1D Our automatic oxygen bomb calorimeter is built on our years of experience in developing oxygen bomb calorimeter. It is widely used to determine heat value of coal, oil, coke, and paraffin in industries such as power plants, metallurgy, cement, and petrochemical, as well as scientific research ...
Rotational Viscometer
A viscometer, also known as viscosimeter, is a laboratory instrument used to measure the viscosity of a fluid. Viscometers only measure under one flow condition. A rheometer is used for liquids with viscosities which vary with flow conditions. Since the torque required to turn an object in a fluid ...
Rotational Viscometer(Indicator)
NDJ-1 Our rotational viscometer is an instrument used to test the viscosity resistance of liquid and absolute viscosity of liquid. It has 4 rotors, cooperating with the rotate speed. Technical Specifications of Rotational Viscometer Viscosity Range 10~100000mPa· ...
Rotational Viscometer(Digital NDJ-1B)
Our NDJ-1B rotational viscometer is an improved instrument of NDJ-1. It has a system of computer-controlled measurement and data processing technology. It is a realization of instrument's intelligentize. LCD screen shows the number of rotor, rotate speed, temperature, viscosity and scale. The minitype ...
System of Rotational Viscometer
NDJ-1B-HT Our system of rotational viscometer is composed of NDJ-1B, Constant temperature vessel, printer and water bath. ...
Brookfield Rotational Viscometer NDJ-1C
Our brookfield rotational viscometer is produced by the standard of T0625-2000. It is used to test the apparent viscosity of the road bitumen, and it is also used to test viscosity of the thermo-sol, paraffin wax, medicament and high polymer. Technical Specifications of Brookfield Rotational Viscometer ...
Brookfield Rotational Viscometer NDJ-1D
Our brookfield rotational viscometer is produced by the standard of T0625-2000. It is used to test the apparent viscosity of the road bitumen, and it is also used to test viscosity of the thermo-sol, paraffin wax, medicament and high polymer. Technical Parameters of Brookfield Rotational Viscometer ...
Rotational Viscometer(Digital NDJ-1E)
Our rotational viscometer is suitable to determine absolute viscosity of Newton liquid and apparent viscosity of non-Newton liquid. It is widely used to determine viscosity of materials, such as latex, oils, chemical reagent, photosensitive resin, paraffin, printing inks, rubber solution, fruits juice, ...
Rotational Viscometer NDJ-1F
Our rotational viscometer is designed and made as per stated requirement of T0625-2000 in the Industry Standard of People Republic of China JTJ052-2000 Test Regulations of Highway Engineering Bitumen and Bitumen mixtures. It is suitable to determine the apparent viscosity of highway bitumen by rotating ...
Rotational Viscometer NDJ-4
Our rotational viscometer is ideally suited for determining viscosity resistance and dynamic viscosity of liquids in a wide range. It can determine viscosity of oil greases, paints, plastics, foods, pharmaceuticals, adhesives and other liquids. Technical Specifications of Rotational Viscometer ...
Rotational Viscometer NDJ-79
Our rotational viscometer is a late-model instrument used to test the absolute viscosity of all kinds of Newton liquids and apparent viscosity of non-Newton liquid. Technical Parameters of Rotational Viscometer Viscosity Range 1~1000000mPa·s ...
Rotational Viscometer(Digital)
NDJ-5S This type of rotational viscometer is a newly-developed product. It used advanced mechanical design techniques, manufacture technologies, and microcomputer controlling techniques, so it can accurately collect data. Besides, it adopts a high-brightness LCD for clear data display. Our rotational ...
Water Bath
Changji Geological Instrument Company is an ISO9001: 2000 certified manufacturer of water bath. Our water baths are designed and made for use in construction companies, research institutes, colleges and universities. Our low temperature water bath uses a new-type refrigeration compressor, resulting in ...
Low Temperature Water Bath
HWY-1 This instrument is suitable to the standards of GB/T260, ASTMD95 and T0612. Test the water content of asphaltum. It is showed in percentage. Technical Parameters of Low Temperature Water Bath Bath Volume 28l Temperature ...
Multifunctional Circulating Water Bath
HWY-10 The design of this multifunctional circulating water bath is based on a lot of extensive market investigation and according to the needs of the laboratory clients. Inner bracket in this apparatus regulates the height of container and connect with the outside container to form outside circulation ...
Temperature Circulating Water Bath
HWY-501 Our temperature circulating water bath is designed according to the technical requirements for the constant temperature water flume in the standard of JB/T5377. It is suitable to be used as a direct heating (or indirect heating) constant temperature water flume. This water bath is not only a ...
Portable Cooler
ZL-1 Our portable cooler is specially designed and made according to the weather status of the entire world and the idiographic need of the lab. While the lab is high temperature, the portable cooler is used not only auxiliary decreasing and keeping constant temperature tool matching with the rotary ...
Electrical Hygrometer
As a major electrical hygrometer manufacturer in China, we specialize in producing and supplying electrical hygrometers and electrical probe hygrometers. These instruments are portable and are used to determine water content of wood. It can also be used for paper, cotton, hemp, tobacco, and medicinal ...
Electrical Hygrometer XSD-1
This electrical hygrometer is a portable instrument used to test water-containing percentage of wood. It also can be used to test the paper, cotton, hemp, tobacco, medicinal materials and seeds by changing the probe. Easy operation. Technical Parameters of Electrical Hygrometer ...
Electrical Probe Hygrometer
XSD-1 Our electrical probe hygrometer is a portable instrument used to test water-containing percentage of wood. It also can be used to test the paper, cotton, hemp, tobacco, medicinal materials and seeds by changing the probe. Easy operation. Technical Parameters of Electrical Probe Hygrometer ...
Electrical Hygrometer XSD-1B
Small cubage, Light weight, Quick measure, Easy operation, Portable. Technical Parameters of Electrical Hygrometer Display Mode LBD denotation Measure Range I. 7~16% II.17>~35% ...
Paint-4 Viscometer
XND-1 Our paint-4 viscometer is a groovy instrument used in the laboratories and workshops etc. Test the viscosity of dope, the flowing time which is under 150S. Technical Parameters of Paint-4 Viscometer Qualification of viscosity time of a unit of sample ...
Oil Bath
HWY-2 Our oil bath is developed and produced by using the latest micro electronic techniques. Being highly reliable and precise, it becomes the indispensable instrument used in laboratories of scientific research institutes, colleges, universities, and construction companies. Currently this oil bath ...
Geological Instrument
A geological instrument is the apparatus that is used to collect, store, identify and process geological information to help analyze and infer geological phenomena. There are a wide variety of geological instruments whose working principles involve almost all the disciplines of physics and chemistry. ...
Inclinometer
An inclinometer is a geological instrument used to measure angles of slope, elevation or inclination of an object with respect to gravity. It is also named a clinometer, tilt meter, slope gauge, gradient meter, gradiometer, level gauge, declinometer, and others. The inclinometers can measure both inclines ...
Currency Power Supply
DD-2 Our DD-2 currency power supply supplies the inclinometers with necessary power. It is one of the corollary instruments of the inclinometers, such as KXP-1, JJX-3A, JJX-3B and etc. ...
Inclinometer Calibrator
JJG-2 This portable inclinometer is applied to ground check and accepts for all kinds of inclinometer. With this instrument, we can check the inclinometer's precision measurement of the slant and azimuth angles.JJX-3A, JJX-3B, our company produced, and others, such as KXP-1, KXP-2, JXY-2 inclinometers ...
Field Graduation Instrument
JJK-1 Our field graduation instrument is made up of angulometer and azimuth compass. It can be used to check telephone clinometer on the spot and detect other slant and azimuth angle of objects on the ground. It is convenient for use, clear in reading. It is a good field-detecting tool to measure the ...
High Precision Inclinometer
JJM-1 This high precision inclinometer uses high-precision sensor and has a system of data dealing. It is mainly used to test the uprightness of bored concrete pile. It is also widely used in inspecting move in the digging of slope, dyke, coast and other occasions using inclinometers. It consists of ...
Inclinometer JJX-3A
This inclinometer is specially designed for measuring the slant angle and the azimuth angle of a borehole which should be uncased and free from any magnetic disturbance. These two parameters to be measured are the requisite information to control the direction of drilling in order to avoid any accident ...
Digital Inclinometer JJX-3A1
Our digital inclinometer is latest developed digital inclination measurement instrument of new type with the function of manual test data recording. It is an upgraded products used to determine dip angle and azimuth angle of vertical borehole or directional borehole. It is the best instrument used to ...
Digital Inclinometer JJX-3A2
Our digital inclinometer is latest designed digital inclination measurement instrument of new type with the function of automatic test dada recording. It is upgraded instrument used to determine dip angle and azimuth angle of vertical or directional borehole. This digital inclinometer is the best instrument ...
Inclinometer JJX-3B
The result of inclination measurement is the necessary document for drilling's acceptance check. In the course of the drilling, in order to control the direction and protect form accidents, it is required to judge the inclination degree, so that we can take actions. The requirement is higher for measuring ...
Small Borehole Caliper
JJY-2 Our small borehole caliper is special device for borehole diameter determination. It is suitable for borehole quality inspection and supervision. Technical Parameters of Small Borehole Caliper 1. Measurement range Φ60 mm~Φ430 mm; ...
Sediment Tester
JNC-1 Dreg thickness is one of the important index of the hole forming quality. This equipment cooperates with JJC-1A Detecting System for Bored Concrete Pile. It takes the special-designed microelectrodes system and newly-designed circuit, so it detects the dreg thickness precisely. Technical Specifications ...
Mud Resistance Measuring Instrument
JNZ-2 Our mud resistance measuring instrument is used to measure the mud resistively in the borehole. If it is used in conjunction with various well logging instruments, the mud resistively curves along the bore can be obtained so as to determine the exit for the ground water to flow into the borehole ...
Fiber Optic Gyroscope Inclinometer without Cable
JTL-40FW This fiber optic gyroscope inclinometer is an inclination measurement instrument of new type, which adopts a high precision fiber optic gyroscope. It can be used to determine dip angle and azimuth angle of vertical borehole or direction borehole in magnetic field or iron casing tube. It can ...
Gyroscope Inclinometer
JTL-50D Our gyroscope inclinometer is mainly used to detect the inclinometer of well using gyroscope. Technical Specifications of Gyroscope Inclinometer Dip angle measuring range 0~50° measuring error ...
High Precision Fiber Optic Gyroscope Inclinometer
JTL-50F High Precision Fiber Optic Gyroscope Inclinometer is a new type borehole high precision inclinometer using fiber optic gyroscope, and a new type digital borehole inclinometer to measure the borehole dip angle and azimuth angle special for the borehole in magnetism mining area or with iron tubes. ...
Digital Well Temperature Tester
JW-1A Our digital well temperature tester is mainly used to determine temperature in the borehole. Lower down the temperature probe into borehole using cable, then you can get temperature-depth curve from controlling unit. The temperature can be used to divide geology sectional surface, determine geothermal ...
Microelectrode System
JWJ-1 Our microelectrode system is one of the resistance well logging instruments. It is same with the three-electrodes system used to measure the apparent resistivity of the formation. Since it has smaller electrode spacing, our microelectrode system is more suitable for solving the following problems: ...
Electrode System
JWJ-2 The electrode system is used to determine apparent resistivity and natural electricity field of earth. It is used to divide geology sectional surface and make geology research on hydrology. Technical Parameters of Electrode System 1. Outer diameter of electrode ...
Compass Inclinometer
JXY-2 Our compass inclinometer is specially designed for determining dip angle and azimuth angle of borehole. In order to control borehole drilling direction and slope, and to avoid any accidents during drilling procedures, we should know the inclination states during drilling procedures, so that we ...
Digital Large Borehole Compass Inclinometer
JXY-2D Our digital large borehole compass inclinometer is designed to make inclination determination and directional control for engineering borehole, exploration borehole and directional borehole in the magnetic area. The instrument integrates sensor, power supply, and data processing system together ...
Engineering Inclinometer
KXO-1 The engineering inclinometer is an instrument used to determine displacement by dip angle. It is mainly used to detect horizontal displacement of deep excavation, side slope, foundation, and pier during observation periods. Bury casing tube in the ground by drilling. When deformation occurs in ...
Portable Inclinometer
KXP-1 This portable inclinometer is a small instrument to measure the drilling curve. It is suitable for measuring the azimuth and point angle with continuous multipoint in non-magnetic drill whose diameter is bigger than 46mm.We can read the incline on the ground by the instrument's manger needle orientation ...
Small Borehole Compass Inclinometer
KXP-2A Our small borehole compass inclinometer is specially used to measure the point angle and azimuth of the drilling. The data on inclination is the most necessary documents for the drilling’s acceptance. In order to control the drilling’s orientation, grade of inclination, and prevent ...
Digital Small Borehole Compass Inclinometer
KXP-2D KXP-2D small caliber digital compass inclinometer is designed for in non magnetic zone to determine and control the inclination of project drilling hole, detection drilling hole, directional drilling hole. The instrument integrates sensor, power supply, data access, single/ multi-points method ...
Digital Portable Inclinometer KXP-3A1
The digital portable inclinometer is a new and economical digital inclination measurement instruments with the function of manual data recording. It is suitable to determine dip angle and azimuth angle of vertical or directional borehole in the magnetic area. It has been widely used to determine inclination ...
Digital Portable Inclinometer KXP-3A2
This digital portable inclinometer is a new style economic digit inclination detecting instrument, and it is used to detect the dip angle and azimuth of the vertical or directional well (hole), moreover it is used to detect the directional hole for controlling the dip angle and directional angle. It is ...
Digital Inclinometer KXZ-1
This digital inclinometer is a fashionable portable high-precision digital inclinometer. It is designed to enable measurement of the tool face (roll) ,pitch and azimuth orientation angles in borehole logging and drilling applications .It is applied to precise measurement for vertical or directional well ...
Digital Inclinometer KXZ-1A
Our digital inclinometer is a new digital inclination measurement in high precision. It is used to determine dip angle and azimuth angle of vertical borehole and directional borehole in high precision. It can also determine dip angle, azimuth angle, tool face angle, and borehole depth in high precision. The ...
High Temperature Digital Inclinometer
KXZ-1B Our high temperature digital inclinometer is a new inclination measurement instrument in high precision. It is used to determine dip angle and azimuth angle of vertical borehole or directional borehole. It can also be used to determine dip angle, azimuth angle, tool face angle and depth of borehole ...
Digital Level Inclinometer
KXZ-2 Our digital level inclinometer is newly developed device to determine slope of horizontal borehole. It adopts a high precision sensor of new type and computer techniques, so its performance is better than general inclination measurement instrument. The digital level inclinometer has been widely ...
Digital Inclinometer( Complete Interspaces )
KXZ-3 The digital inclinometer is a new high precision, digital full space inclination measurement device. It is used for direction orientation and inclination measurement during engineering borehole, directional borehole, horizontal borehole, connection borehole, and other drilling hole in the non-magnetic ...
Automatic Water Level Tester
SWZ-1A Our automatic water level tester is an automatic water level tester of mechanical or electronical clock type, it is used in the field of astronomy, geology, aviation and earthquake determination. It can record the water level of ground water and surface water continuously and automatically. Technical ...
Automatic Two Pen Well Logging Instrument
Our automatic two pen well logging instrument is used to record the depth and bore diameter (or other parameters) in the detecting course of bored concrete pile. Technical Specifications of Automatic Two Pen Well Logging Instrument 1. Depth ratios 1/10, ...
Concrete Pile Detection
A concrete pile detection system is a geological instrument for inspecting the quality of borehole of concrete pile. It mainly consists of measuring probe, winch, cable, pulley, and so on. This instrument is widely used to inspect borehole diameter, depth, verticality, wall shape, and dreg thickness at ...
Detecting System for Bored Concrete Pile JJC-1A
Our detecting system for bored concrete pile is mainly used to check the bore diameter quality of filling pile for the projects of high building, bridge, airport, high-way, seaport and wharf. Package may be used to detect the bore diameter, depth, vertical extend of bore, appearance of the borehole wall, ...
Detecting System for Bored Concrete Pile JJC-1B
Our detecting system for bored concrete pile is mainly used to check the bore diameter quality of filling pile for the projects of high building, bridge, airport, high-way, seaport and wharf. Package may be used to detect the bore diameter, depth, vertical extend of bore, appearance of the borehole wall, ...
Detecting System for Bored Concrete Pile JJC-1C
Our detecting system for bored concrete pile is designed basing on JJC-1A. It consists of two-pen automatic well logging equipment, four-leg caliper, logging winch and other necessary equipments. The advantages of this concrete pile detection system are portable and practical. It has been widely used ...
Detecting System for Bored Concrete Pile JJC-1D
Our detecting system for bored concrete pile is mainly used to check the bore diameter quality of filling pile for the projects of high building, bridge, airport, highway, seaport and wharf. Package may be used to detect the bore diameter, depth, vertical extend of bore, appearance of the borehole wall, ...
High Precision Inclinometer
JJM-1 Our high precision inclinometer uses high-precision sensor and has a system of data dealing. It is mainly used to test the uprightness of bored concrete pile. It is also widely used in inspecting move in the digging of slope, dyke, coast and other occasions using inclinometers. The high precision ...
General Cable Connector
JJT-1 The general cable connector is matched with three-core plastic mask cable, seven-core rubber mask cable, four-core armoured cable, and it may be matched with inclinometer, caliper, bored concrete pile determination device made by our corporation. Technical Specifications of General Cable Connector ...
Pulley of Pithead
This pulley of pithead is necessary for the well logging instruments. There is a coder on it, giving the signal of sending paper and showing the depth of well logging. Specifications of Pulley of Pithead 1. Three circles/meter for small pulley 2. One circle/meter for big pulley ...
Logging Winch
A logging winch is a great way to move your firewood logs before processing. It is mainly used for borehole determination in mining, geology, hydrology, and other fields. We are an ISO9001:2000 certified logging winch manufacturer and supplier in China. Our products feature small size, light weight and ...
Manual Winch
JC-1A Our manual winch is mainly used for borehole determination in mining, hydrology, borehole of concrete pile detection. It uses a motor to pull cable. Technical Specifications of Manual Winch 1. If use three cores plastic sheath cable of Φ5.6mm, it can wind 500m cable. Total cable tension ...
Electric Winch
JC-1B, C Our electric winch is mainly used for borehole determination in mining, hydrology and borehole of concrete pile determination. It adopts an electric motor to pull cable. Technical Parameters of Electric Winch 1. Speed ratio between turbo and worm ...
Stepless Speed Regulation Winch
JC-2A Our stepless speed regulation winch is a portable special device used to rise up and lower down borehole determination instruments and cables in physical exploration, hydrology, and coal field. It is small, light and convenient to be operated. If use WTOEF seven cores cable (Ø11.3 mm), ...
Well Logging Instrument
As a professional well logging instrument manufacturer and supplier in China, we offer trilateral well logging instrument, brush electrode well logging instrument, portable well logging instrument, and automatic four pen logging instrument etc. for you to choose from. Featuring high sensitivity, resolving ...
Trilateral Well Logging Instrument
JC3-1A Our trilateral well logging instrument is one kind of the well logging instrument of resistively method using collecting electrodes. Its features are: strong capability of differentiating layers, little influence on adjacent layers. Clear response of curves change in the mud well of high degree ...
Brush Electrode Well Logging Instrument
JDJ-1 Brush electrode well logging instruments are used in well logging for exploration of coal and metallic mineral in order to determine the thickness and structure of their formation Technical Specifications of Brush Electrode Well Logging Instrument 1. Electrode ...
Single Channel Scintillation Radiation Well Logging Instrument
JFS-1 This single channel scintillation radiation well logging instrument makes use of a probe composed of sodium iodide crystal and photo-electric multiplier to convert gamma ray into electrical quantity to be measured. It is used to measure the gamma ray strength of the rocks in the boreholes of coal, ...
Portable Well Logging Inclinometer
JHQ-1 Our portable well logging inclinometer is suitable to be used in geophysical well logging, such as coalfield, metal, drilling and etc. It records the curves of different parameters. It consists of recorder, power supply, measuring range controller, depth indicator, regulator power, pulley of pithead ...
Automatic Four Pen Logging Instrument
JJZ-1A Four-pen Automatic Logging Instrument is suitable to used in coal field, metal, hydrology drilling and other global physical logging. The Recorder may be used separately, too matched with other devices to record all kinds of curve. The recorder includes Four-pen Recorder, power supply and control ...
Caliper
We are a Chinese caliper manufacturer, providing caliper Ф500-1200 and big diameter caliper for your option. Our caliper is a geological instrument used to determine the diameter of geological borehole and engineering borehole. The borehole diameter can be obtained by measuring and calculating the average ...
Caliper Ф500-1200
JJY-2 JJY-2 Caliper is an instrument specially used to measure the average diameter of well bore. Its four measuring legs closely cling to borehole wall when they are being lifted, as if there are two rules measuring two diameters that are perpendicular to each other. The caliper records depth curve ...
Big Diameter Caliper
JJY-5 This big diameter caliper is an instrument specially used to measure the average diameter of well bore. It’s four measuring legs closely cling to borehole wall when they are being lifted, as if there are two rules measuring two diameters that are perpendicular to each other. The caliper ...
Concrete Height Location
JTG-1A By adopting the sensor structure that is suitable for running under water and the determination method that fixes the sensor under water, this concrete height location instrument makes the constructor can control the concrete height location accurately when the pile is filling. It can decrease ...

About us Shanghai Changji Geological Instrument Company, formerly known as the Shanghai Geology Factory, is a China-based petroleum instrument and highway instrument manufacturer. Since our beginning in 1998, we have been dedicated to the research and development of petroleum testing instruments and highway material testing equipment. To stay competitive in the market, we continue to offer new products every year....