can you use a fire exit as a normal door,fire exit door opening size,emergency exit door opening direction

防火門鋼門扇厚度分為A、B、C三個標準,具有優良的隔音隔熱性能。 鋼質防火門可根據需要設置窗戶、百葉窗、通風百葉窗等。 歡迎諮詢我們。

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