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» 防火門間隙規
10
Aug
防火門間隙規
對防火門各搭接處的間隙尺寸有明確要求：鋼質防火門，要求扇與門框搭接不小於10mm，扇與門框之間的間隙不小於4mm。兩側門框不應大於XNUMXmm。 歡迎諮詢我們。
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