发布时间:2025-01-19 02:27:03
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。
装修工人退场后阳台瓷砖留下这些黑色印子怎么都刷怎么洗都洗不掉请问有什么方法可以去除
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