
Construction Drawings - General Rules For Execution Of Production Drawings For Prefabricated Structural Components
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
Construction Drawings - General Rules For Execution Of Production Drawings For Prefabricated Structural Components
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频