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LB棒條閥也稱通(tong)(tong)(tong)(tong)風(feng)風(feng)門、通(tong)(tong)(tong)(tong)風(feng)調節閥,普遍適用于建材、冶金(jin)、化工、電工等行業,作為各(ge)類除塵設備的(de)(de)管(guan)道通(tong)(tong)(tong)(tong)風(feng)裝置(zhi)及各(ge)種磨機、烘(hong)干(gan)機、料倉等設備的(de)(de)給(gei)通(tong)(tong)(tong)(tong)風(feng)裝置(zhi),防止野(ye)風(feng)吹入。