发布时间:2025-01-30 15:55:41
这个根据荷载而定,荷载小用小螺栓,荷载大用大螺栓,根据梁的大小而定。具体根据设计师设计来做!或者多上两个螺栓。
我打算在燕郊买个2居不超过90平米两年左右的二手房请各路英雄告知是选择天洋城还是上上城好
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