发布时间:2025-02-06 18:58:32
《建筑设计防火规范》7.4章“ 楼梯间、楼梯和门”规定,除楼梯间的门之外,楼梯间的内墙上不应开设其它门窗洞口。其目的是防止火灾发生时,房间内的烟气窜入疏散楼梯间而影响人员疏散。
房屋拆迁中新房与旧房、砖房与土坯房、屋内装修与未装修拆迁标准怎么定
2025-02-06 18:58:32 2025-02-06 18:58:32panasonic 松下 th65jx760c 液晶电视 65英寸购买最佳价格
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