NEN EN 10253-4:2008现行
Butt-Welding Pipe Fittings - Part 4: Wrought Austenitic And Austenitic-Ferritic (Duplex) Stainless Steels With Specific Inspection Requirements
出版：Nederlands Normalisatie Instituut
专家解读视频
2008 C1 2009 [01/05/2009]2008 [01/04/2008]DRAFT 2003 [01/06/2003]
DIN EN 10253-4 (2008-06) - Identical
EN 10253-4:2008 - Identical
SS EN 10253-4 Ed. 1 (2008) - Identical
NF EN 10253-4:2009 - Identical
NF EN 10253-4:2003 - Identical
BS EN 10253-4:2008 - Identical
