我可以用防膨胀填缝密封防火墙中的非金属电气管道穿透?


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如果我用EMT穿透防火墙(车库墙),我似乎可以简单地使用适当厚度的膨胀填缝剂。

如果我使用的是非金属的,或者我必须使用衣领,我可以这样做吗?

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