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工程建设推荐性标准《建筑排水硬聚氯乙烯螺旋管管道工程设计、施工及验收规程》CECS 94:97已由北京市市政工程设计研究总院及中国航天建筑设计研究院等原编制单位根据《建筑给水排水设计规范》GBJ15-88于1997年局部修订条文的内容(1998年1月1日施行)及新修编的《建筑排水硬聚氯乙烯管道工程技术规程》CJJ 29-97中相应的条文进行
Recommended standards for construction projects “Design, construction and acceptance of building drainage PVC pipe projects” CECS 94:97 by the Beijing Municipal Engineering Design and Research Institute and China Aerospace Architectural Design and Research Institute and other original preparation units under the “ Building Water Supply and Drainage Design Code ”GBJ15-88 partial revision of the provisions in 1997 (January 1, 1998 implementation) and the newly revised“ Building Drainage PVC pipe engineering technical specifications ”CJJ 29-97 corresponding Provisions