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硬聚氯乙烯(以下简称UPVC)管作为城市给水管道新型管材,近年来在国内也得到了越来越广泛的应用。中国工程建设标准化协会于1990年9月25日批准使用《室外硬聚氯乙烯给水管道工程施工及验收规
As a new type of pipe for urban water supply pipe, rigid polyvinyl chloride (hereinafter referred to as UPVC) pipe has also been used more and more widely in China. China Construction Standardization Association on September 25, 1990 approved the use of "outdoor hard PVC water supply pipeline construction and inspection regulations