发布时间:2025-01-29 23:30:48
如果你肯花钱的话,建议预制一根预应力梁比较安全。主筋用32的箍筋12的就够了,绑个双排的笼子。
国美电器家电下乡指定型号冰箱空调的进价和售价如下表所示 类别 冰箱 空调 进价元
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