SS 272-1983 SPECIFICATION FOR Unplasticized PVC Pipes below Ground for Drainlines and Sewers《地下排水管道和下水道用非增塑PVC管的规范 修订1》.pdf

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JIS G5525-2000 排水管道和配件用铸铁-解释.pdf

CJJ 143-2010 埋地塑料排水管道工程技术规程.pdf

CJ T 3021-1993 排水管道闭气检验用板式密封管堵.pdf

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CJJ 181-2012 城镇排水管道检测与评估技术规程.pdf

CJJ 6-1985 排水管道维护安全技术规程.pdf

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CJJ T 210-2014 城镇排水管道非开挖修复更新工程技术规程.pdf

GA 304-2001 硬聚氯乙烯建筑排水管道阻火圈.pdf

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