We are Shanghai Keheng Precise Instruments Co., Ltd, specializing in precision mechanical parts and bimetallic temperature elements. Our bimetallic temperature elements are adopting 5J20110 material whose quality is equal to the TRUFLEX P675R. Chace7500 of American, BR--1 of SUMITOMO and NIY of Toshiba of Japan, D IMPHY 108SP of France and G. Rau M of Germany. Our products have higher precision with the characteristic less than plus or minus 2Fahrenheit. We also produce a variety of temperature devices according to customers requirements with the high quality and more competitive price. Please contact me without any hesitation if you have any enquiries. Hope we can make a bright perspective together.