
Plastics piping systems for renovation of underground water supply networks Part 1: General (ISO 11298-1:2018)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Plastics piping systems for renovation of underground water supply networks Part 1: General (ISO 11298-1:2018)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻