发布时间:2025-02-03 22:43:32
十四天。下地基一般需要地基混凝土强度达到设计强度的70%才能安装钢结构的立柱,按规范,7天砼强度达到60%-70%,14天达到80%-90%,28天达到100%。正常气温,倒地网后养护14天比较保险。
从黄村西大街怎么去大兴区芦求路东南开关厂南侧永旺二手市场要路线
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