
ISO general purpose metric screw threads - Selected sizes for screws, bolts and nuts (ISO 262:1998)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
ISO general purpose metric screw threads - Selected sizes for screws, bolts and nuts (ISO 262:1998)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频