yrpyn 发表于 2017-12-18 09:24:17

ISO 3633-2002 Plastics piping systems for soil and waste discharge (low and high

ISO 3633:2002 plastics piping systems for soil and waste discharge (low and high temperature) inside buildings -- Unplasticized poly(vinyl chloride) (PVC-U)建筑物内污废水排放系统用硬聚氯乙烯(PVC-U)塑料管道系统(低温和高温)





admin 发表于 2017-12-18 16:27:31

谢谢您的分享，金币已奖励!

ZM09250203 发表于 2018-8-13 14:24:30

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