Cangzhou Qi Run Detecting Instrument Co.,Ltd is a professional manufacturer of thermocouple and molten steel sampler. Temperature is achieved by measuring the thermoelectric power with thermocouple. The main part of thermocouple is thermocouple head, which is composed of two different kinds of metal materials, the compensation wire, U type quartz tube, plastic stent, high temperature mud head, protective cap and paper tube body. Although it is a consumption type product, its performance will directly affect the quality of the product to be measured. Therefore, it is very strict to the production of thermocouple, component quality, welding, installation, technical inspection and  inventory storage requirements.