
Plastics Piping Systems For Renovation Of Underground Gas Supply Networks - Part 3: Lining With Close-fit Pipes (iso 11299-3:2011)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Plastics Piping Systems For Renovation Of Underground Gas Supply Networks - Part 3: Lining With Close-fit Pipes (iso 11299-3:2011)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻