
Technical Drawings - General Principles Of Presentation - Part 24: Lines On Mechanical Engineering Drawings (Iso 128-24:2014)
出版:Osterreichisches Normungsinstitut

專家解讀視頻
Technical Drawings - General Principles Of Presentation - Part 24: Lines On Mechanical Engineering Drawings (Iso 128-24:2014)
出版:Osterreichisches Normungsinstitut
專家解讀視頻