
En 10263-1 - Steel Rod, Bars And Wire For Cold Heading And Cold Extrusion - Part 1: General Technical Delivery Conditions
出版:British Standards Institution

专家解读视频
En 10263-1 - Steel Rod, Bars And Wire For Cold Heading And Cold Extrusion - Part 1: General Technical Delivery Conditions
出版:British Standards Institution
专家解读视频