发布时间:2025-01-18 08:16:09
这个要根据你采用的混凝土标号、现场的温度及保温措施情况,但是底层模板必须在28天以上才能拆模,还有就是根据提前做的预留试块进行强度试验后再具体分析。
大学新生准备去天津购物跪求买像储物盒储物袋床帘等小玩意儿的地方
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