
Metallic materials - Wire - Reverse torsion test
出版:International Organization for Standardization

专家解读视频
KS B ISO 9649:2002 - Identical
GB/T 239.2-2012 - Modified
KS B ISO 9649:2015 - Identical
DIN ISO 9649 (1993-04) - Identical
NBN ISO 9649:1997 - Identical