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簡介：
可用于(yu)控(kong)制電(dian)纜通道防火門，可遠程(cheng)(cheng)開(kai)(kai)啟或關(guan)閉。自帶溫控(kong)開(kai)(kai)關(guan)，遠程(cheng)(cheng)控(kong)制失效后(hou)可自動開(kai)(kai)啟或關(guan)閉。
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