
IRON AND STEEL - QUALITY STANDARDS 3/1 - SEAMLESS AND WELDED STEEL TUBES FOR PRESSURE APPLICATIONS
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
IRON AND STEEL - QUALITY STANDARDS 3/1 - SEAMLESS AND WELDED STEEL TUBES FOR PRESSURE APPLICATIONS
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频