
FREE-CUTTING STEELS - TECHNICAL DELIVERY CONDITIONS FOR SEMI-FINISHED PRODUCTS, HOT-ROLLED BARS AND RODS
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
FREE-CUTTING STEELS - TECHNICAL DELIVERY CONDITIONS FOR SEMI-FINISHED PRODUCTS, HOT-ROLLED BARS AND RODS
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频