发布时间:2025-01-22 12:16:51
不能及时张拉没什么,梁的强度越高,张拉后的预拱度越好,1楼所说的一个月才张我觉得不太现实,也不符合实际
水灰比为水1压浆剂011水泥036每方砼1950kg求水泥和压浆剂各是多少
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