PN EN 13598-1:2005被替代
Plastics Piping Systems For Non-pressure Underground Drainage And Sewerage - Unplasticized Poly(vinyl Chloride) (pvc-u), Polypropylene (pp) And Polyethylene (pe) - Part 1: Specifications For Ancillary Fittings Including Shallow Inspection Chambers
出版：Polish Committee for Standardization
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