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BS EN 13598-2-2020
无压力地下排水和排污用塑料管道系统.非增塑聚氯乙烯(PVC-U)、聚丙烯(PP)和聚乙烯(PE).第2部分:检修孔和检查室用规范Plastics piping systems for non-pressure underground drainage and sewerage. Unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE). Specifications for manholes and inspection chambers
原版可复制
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