
DUCTILE IRON PRESSURE PIPES WITH SOCKET WITH CEMENT-MORTAR LINING FOR GAS AND WATER PIPELINES - DIMENSIONS AND MASSES
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
DUCTILE IRON PRESSURE PIPES WITH SOCKET WITH CEMENT-MORTAR LINING FOR GAS AND WATER PIPELINES - DIMENSIONS AND MASSES
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻