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UL Steel Fire Door
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EN Steel Fire Door
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» 防火门 30 分钟
14
9月
防火门 30 分钟
C级防火门的耐火极限为30分钟,防火门的耐火时间主要由防火板决定。 如果隔墙将两个独立的建筑物隔开,则防火门和包含隔墙的墙必须具有相同的抵抗期。 在任何其他情况下,允许防火门 30 分钟。
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