
CONSTRUCTION DRAWINGS - REPRESENTATION OF MODULAR SIZES, LINES AND GRIDS
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
CONSTRUCTION DRAWINGS - REPRESENTATION OF MODULAR SIZES, LINES AND GRIDS
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻