
Welding - Grouping systems for materials - Japanese materials
出版:International Organization for Standardization

专家解读视频
CEN ISO/TR 20174:2005 - Identical
NEN NPR CEN ISO/TR 20174:2006 - Identical
UNE CEN ISO/TR 20174:2006 - Identical
DIN-FACHBERICHT CEN ISO/TR 20174 (2006-09) - Identical
PD CEN ISO/TR 20174:2005 - Identical
ONORM ONR 2920174:2006 - Identical
SIS CEN ISO/TR 20174 Ed. 1 (2007) - Identical