DIN EN 1453-3 (1994-08)被替代
Plastics Piping Systems With Structured Wall Pipes For Soil And Waste Discharge (low And High Temperature) Within The Building Structure - Unplasticized Poly(vinyl Chloride)(pvc-) - Part 3: Fittings
出版：German Institute for Standardisation (Deutsches Institut für Normung)
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