
Technical drawings - General principles of presentation Part 24: Lines on mechanical engineering drawings (ISO 128-24:1999)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
Technical drawings - General principles of presentation Part 24: Lines on mechanical engineering drawings (ISO 128-24:1999)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频