发布时间:2025-02-03 06:29:04
对,提高设计标准,适当增加雪荷载,提高服务年限,结构及维护材料满足地区雪荷载最低标准值。这样就不会被雪压塌了。
35米宽20公分厚混凝土路面的人工费搅拌站2人倒水泥支钢模6人浇筑8人是多少钱最好具体点谢谢
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