http://www.a108a.com/category/tuanbiaodongtai/zhong-guo-shui-xie-tuan-ti-biao-zhun-pai-shui-guan-dao-gong-cheng-zi-mi-shi-hui-tian-cai-liao-ying-yong-ji-shu-gui-cheng-xuan-gu.html 中國水協團體標準《排水管道工程自密實回填材料應用技術規程》宣貫會通知