ISO 727:1985 压力管用平口未增塑聚氯乙烯(PVC-U).氯化聚氯乙烯(PVC-C)或丙烯腈丁二烯苯乙烯(ABS)配件套接尺寸.米制系列
Fittings of unplasticized polyvinyl chloride (PVC-U), chlorinated polyvinyl chloride (PVC-C) or acrylonitrile/butadiene/ styrene (ABS) with plain sockets for pipes under pressure; Dimensions of sockets; Metric series