
Refrigerating Systems And Heat Pumps - Qualification Of Tightness Of Components And Joints (Iso 14903:2017)
出版:Norwegian Standards (Norges Standardiseringsforbund)

專家解讀視頻
2017 [01/11/2017]
Supersedes NS EN 16084. (11/2017)
EN ISO 14903 : 2017 - Identical
ISO 14903 : 2017 - Identical
ISO 14903 : 2017 - Identical
EN ISO 14903 : 2017 - Identical
EN ISO 14903:2017 - Identical