
Multilayer piping systems for hot and cold water installations inside buildings Part 2: Pipes (ISO 21003-2:2008 + Amd 1:2011) (includes Amendment A1:2011)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

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Multilayer piping systems for hot and cold water installations inside buildings Part 2: Pipes (ISO 21003-2:2008 + Amd 1:2011) (includes Amendment A1:2011)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频