8月1日起《生活饮用水用聚氯化铝》强制性国家标准实施了！ 1970-01-01T08:00:00+08:00 Typecho //www.powerboatlaw.com/feed/atom/category/guojiabiaozhundongtai/8yue-1ri-qi-sheng-huo-yin-yong-shui-yong-ju-lu-hua-lu-qiang-zhi-xing-guo-jia-biao-zhun-shi-shi-le.html