
Industrial Valves - Face-To-Face And Centre-To-Face Dimensions Of Metal Valves For Use In Flanged Pipe Systems - Pn And Class Designated Valves
出版:Osterreichisches Normungsinstitut

專(zhuān)家解讀視頻
2012 [01/02/2012]2010 [01/12/2010]2008 [01/04/2008]
Supersedes ONORM EN 558-1 & ONORM EN 558-2. (04/2008)
EN 558:2017 - Identical