Wear-resisting performance of the thermocouple due to the measured medium for different temperature range and adopt different high strength wear resistant protection tube and surface modification measures, constitute a multiple tube type materialization structure this series product is suitable for protecting tube wear serious petroleum chemical industry, coal conveying system, fluidized bed boiler, cement clinker and flowing powders and materials such as refractory temperature measurement. To further improve the service life of thermocouple. Its performance is superior to the current wear-resistant thermocouple, wins the user high praise. Has a number of high-tech products in the international leading level, its special process of wear resistant materials under the premise of without affecting temperature lag, completely solve the service life of the circulating fluidized bed boiler temperature measuring thermocouple, protect casing has wear-resisting, high temperature oxidation resistance, resistance to sulfide and liquid iron powder, limestone and so on concrete corrosion, scour resistance, resistance to vibration technology, makes the service life of the temperature measuring thermocouple generally one to two years.