類型:防火閥設(shè)備名稱:防火閥 防火調(diào)節(jié)閥 排煙閥 排煙防火閥材質(zhì):鋁合金用途:安裝在有消防要求的通風(fēng)、空調(diào)系統(tǒng)管道上規(guī)格:200--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------