DIN EN 10253-4 (2008-06)现行
Butt-welding pipe fittings Part 4: Wrought austenitic and austenitic-ferritic (duplex) stainless steels with specific inspection requirements
出版：German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频
NF EN 10253-4:2003 - Identical
BS EN 10253-4:2008 - Identical
EN 10253-4:2008 - Identical
NEN EN 10253-4:2008 - Identical
SS EN 10253-4 Ed. 1 (2008) - Identical
NF EN 10253-4:2009 - Identical
