
Aerospace series - Steel and heat resisting alloys - Wrought products - Technical specification - Part 002: Bars and sections
出版:Comite Europeen de Normalisation

专家解读视频
Aerospace series - Steel and heat resisting alloys - Wrought products - Technical specification - Part 002: Bars and sections
出版:Comite Europeen de Normalisation
专家解读视频