Chongqing Duchin Instrument CO.,LTD was founded in 2001,located at Beibei National
University Science Park, which covers 16 acres.
The company professional manufactures temperature sensors and the related devices,
whose mainly products including Thermocouples, Thermal Resistance, Heat Meter
Temperature Sensors, Bimetallic Thermometers, Display Control Instruments,
Thermocouple Compensation Wires, Electrical Heaters, Tungsten Rhenium
Thermocouple Vacuum Calibration Device, Composite Alloy Thermowells, and Complete
Sets Of Instrumentation.
The company owns ISO9001 Certification, CE certification and National Explosion-proof
certification.
The company already listed in NEEQ, whose stock code is 872715.Therefore, the
company has been rated as “National high-tech Enterprise”,” Abide contract and credit
enterprise”. It’s also one of the responsible suppliers for IOFFICE. Duchin was the leader
for setting standards of 《Single Core Sheath Thermocouple》 .The Company has been
rated as “Recommend Supplier Of Heat Treatment Industry” by China Heat Treatment
Association. The trademark ”大正” has been rated as “Chongqing Famous Trademark”.
The company is one of the enterprises who R&D Tungsten rhenium thermocouple at the
earliest in China. And now, it already owns a series of this kind of products, among which
the High Temperature And High Pressure Tungsten Rhenium thermocouple got the first
R&D success in China. Duchin Tungsten Rhenium thermocouple series products occupy
the market at the forefront, and having been rated as “Chinese Good Instrument” by Chinese Instrumentation Institute .
“Single Core Sheath Thermocouple” and “Big Diameter and Thickness Sheath
Thermocouple” are Duchin patent products. The company creatively using the methods of
“Preferred Pairing” and “Heat Rolling” to the produce process of sheath thermocouples.
Depending on these invents, improving the structure systems and produce process of
thermocouples, also pushing technological prog
