发布时间:2025-02-02 01:13:17
有两种方式:1.用铁丝掉在屋顶上,2.安装龙骨,将网片搭在龙骨上即可,这样装卸方便 3.安装龙骨,将网片卯在龙骨上
商业街二层电梯宜设独立电梯间给出了建筑设计防火规范537要求求有什么做法达到要求
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