
Steel Rod, Bars And Wire For Cold Heading And Cold Extrusion - Part 4: Technical Delivery Conditions For Steels For Quenching And Tempering
出版:Polish Committee for Standardization

专家解读视频
Steel Rod, Bars And Wire For Cold Heading And Cold Extrusion - Part 4: Technical Delivery Conditions For Steels For Quenching And Tempering
出版:Polish Committee for Standardization
专家解读视频