
STEEL FLAT PRODUCTS - COLD REDUCED SHEET AND STRIP - TECHNICAL DELIVERY CONDITIONS - GENERAL PURPOSE STRUCTURAL STEELS
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
STEEL FLAT PRODUCTS - COLD REDUCED SHEET AND STRIP - TECHNICAL DELIVERY CONDITIONS - GENERAL PURPOSE STRUCTURAL STEELS
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频