发布时间:2025-01-18 21:21:48
1/6-1/4内。为保证梁底方木安装方便,弧形梁模板弧长控制在1.2m1.5m左右为宜。,三铰拱或弧形轻型桁架,至于拱高,可在1/6-1/4内取值,南方防风,北方防雪。
我家厨房去年装修的吊顶现在四周的过条掉下来了一根我想自己粘上去请问用什么胶比较好啊
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