DIN EN ISO 1452-2 (2010-04)现行
Plastics piping systems for water supply and for buried and above-ground drainage and sewerage under pressure - Unplasticized poly(vinyl chloride) (PVC-U) Part 2: Pipes (ISO 1452-2:2009)
出版：German Institute for Standardisation (Deutsches Institut für Normung)
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