换气扇价格超低批发 金羚排气扇 卫生间换气扇 换气扇北京批发中心
型号规格风量功率转速噪音开孔尺寸接管尺寸面板尺寸mm/in(m3/h)(w)(r/min)dB(A)(mm)(mm)(mm)BPT12-14-2120/4.812031113045212×212100246×246BPT12-24-2120/4.815034125046232×232100270×270BPT15-23-1150/62282890045282×282150320×320BPT17-33-2170/6.828838103049282×28150320×320)