Standard thermocouple Changhui second-class standard platinum rhodium 30 platinum rhodium 6 thermocouple Call
Standard platinum resistance Changhui TM-5012B portable standard platinum resistance thermometer Call
Standard platinum resistance Changhui second-class standard platinum resistance thermometer WZPB-2 Call
Standard platinum resistance Changhui metal tube standard platinum resistance thermometer WZPB-9 Call
Standard platinum resistance Changhui standard platinum resistance thermometer temperature gauge Call
Standard platinum resistance Changhui aluminum point second-class standard platinum resistance thermometer WZPB-8 Call