... fan 1.boiler centrifugal blower, fan, 2.centrifugal ventilator 3.dust exhaustin 4.prompt delivery C6-46 type exhausting centrifugal ventilator fan ... can be use as general ventilation. This type blower has six curved blades.It is not easy ... to dirt, and wear resistance,etc. The blower has A type and C type transmission, and ... 543-4579617Skype: kaitaimengmengwang C6-46 type exhausting centrifugal fan