This standard specifies the technical requirements, test methods, inspection rules, packaging and storage of potentiometer pressur

This standard specifies the product classification, technical requirements, inspection rules and marking, packaging and storage of

This part specifies the classification, requirements, test methods, inspection rules, packaging and storage of electromechanical A

This part specifies the classification, requirements, test methods, inspection rules, marking, packaging and storage of electromec

This part specifies the definition, classification, requirements, test methods, inspection rules, marking, packaging, transportati

This standard specifies the terms, symbols, product classification, technical requirements, test methods, acceptance rules and mar

JB/T 5446-1999 This standard is a reference to JB/T 5445-91 "Medium-sized piston single-machine two-stage refrigeration compressor

This standard replaces JB 1376-74 and JB 3772-84. This standard specifies the types and basic parameters of steam-type lithium bro