
Pipe joint assemblies and fittings of unplasticized polyvinyl chloride (U-PVC) pressure pipelines; dimensions of flanged and socket fittings
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
ISO 2045:1988 - Identical
ISO 6455:1983 - Identical
ISO 2048:1990 - Identical