NS EN ISO 6520-1 Ed. 2 (2007)现行
Welding And Allied Processes - Classification Of Geometric Imperfections In Metallic Materials - Part 1: Fusion Welding
出版：Norwegian Standards (Norges Standardiseringsforbund)
专家解读视频
Serves as a basis for a precise classification and description of weld imperfections.
NEN EN ISO 6520-1:2007 - Identical
UNE EN ISO 6520-1:1999 - Identical
I.S. EN ISO 6520-1:2007 - Identical
SS EN ISO 6520-1 Ed. 2 (2007) - Identical
ISO 6520-1:2007 - Identical
UNI EN ISO 6520-1:2001 - Identical
NBN EN ISO 6520-1:2007 - Identical
NF EN ISO 6520-1:2007 - Identical
ONORM EN ISO 6520-1:2007 - Identical
DIN EN ISO 6520-1 (2007-11) - Identical
BS EN ISO 6520-1:2007 - Identical
SN EN ISO 6520-1:2007 - Identical
UNI EN ISO 6520-1:2008 - Identical
UNE EN ISO 6520-1:2009 - Identical
