
Refrigerating systems and heat pumps - Safety and environmental requirements Part 1: Definitions, classification and selection criteria - Amendment 1: Correction of QLAV, QLMV
出版:International Organization for Standardization

專家解讀視頻
Refrigerating systems and heat pumps - Safety and environmental requirements Part 1: Definitions, classification and selection criteria - Amendment 1: Correction of QLAV, QLMV
出版:International Organization for Standardization
專家解讀視頻