建筑排水用硬聚氯乙烯(PVC-U)管件 GB\T5836.2-2018
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建筑屋面雨水排水铸铁管、管件及附件 GB\T37357-2019
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城镇供水管理信息系统基础信息分类与编码规则 CJ\T541-2019
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建筑给水排水GF制图标准 [附条文说明] GB\T50106-2010
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农村生活污水处理工程技术标准 [附条文说明] GB\T51347-2019
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给水用聚乙烯(PE)管道系统第3部分:管件 GB\T13663.3-2018
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给水用聚乙烯(PE)管道系统第2部分:管材 GB\T13663.2-2018
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给水排水GF用格栅除污机通用技术条件 GB\T37565-2019
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