
HOT ROLLED STEEL CHANNELS - PART 1: TAPER FLANGE STEEL CHANNELS - DIMENSIONS, MASSES AND SECTIONAL PROPERTIES
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
HOT ROLLED STEEL CHANNELS - PART 1: TAPER FLANGE STEEL CHANNELS - DIMENSIONS, MASSES AND SECTIONAL PROPERTIES
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频