
Hand- And Machine-Operated Circular Screwing Dies For Parallel Pipe Threads - G Series (Iso 4231:2016)
出版:Norwegian Standards (Norges Standardiseringsforbund)

專家解讀視頻
2016 [01/02/2017]
Supersedes NS ISO 4231. (02/2017)
EN ISO 4231:2016 - Identical
ISO 4231 : 2016 - Identical
EN ISO 4231 : 2016 - Identical