
Thermoplastics pressure pipelines; metal compression fittings for polyethylene (PE) pipes; general quality requirements; testing
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Thermoplastics pressure pipelines; metal compression fittings for polyethylene (PE) pipes; general quality requirements; testing
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻