08/30180138 DC被替代
BS EN 13476-3 AMD1. Plastics piping systems for non-pressure underground drainage and sewerage. Structured-wall piping systems of unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE). Part 3. Specifications for pipes and fittings with smooth internal and profiled external surface and the system, Type B
出版：British Standards Institution
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