ISO/TR 20173:2018 EN 425e3040
Welding — Grouping systems for materials — American materials
现行
发布日期 :
2018-07-20
实施日期 :
IEC 60404-8-1:2015 EN-FR 0bed334d
Magnetic materials - Part 8-1: Specifications for individual materials - Magnetically hard materials
REVISED
发布日期 :
2015-03-27
实施日期 :
IEC 60404-8-1:2001 EN-FR 1b9a1141
Magnetic materials - Part 8-1: Specifications for individual materials - Magnetically hard materials
REVISED
发布日期 :
2001-04-11
实施日期 :