
Plastics piping systems for hot and cold water installations - Polyethylene of raised temperature resistance (PE-RT) Part 1: General (ISO 22391-1:2009)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

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Plastics piping systems for hot and cold water installations - Polyethylene of raised temperature resistance (PE-RT) Part 1: General (ISO 22391-1:2009)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频