DIN EN 10253-4 Berichtigung 1:2009-11
Butt-welding pipe fittings - Part 4: Wrought austenitic and austenitic-ferritic (duplex) stainless steels with specific inspection requirements; German version EN 10253-4:2008, Corrigendum to DIN EN 10253-4:2008-06; German version EN 10253-4:2008/AC:20...