Centrifugal Fan, Axial Fan manufacturer / supplier in China, offering D310mm 230V Plastic IP44 Class Exhaust Ventilation Blower Cooling Air Cooler Ec Backward Centrifugal Blower Fan with RoHS Centificated, Diameter 350mm 48V Energy-Saving Heavy-Duty Bearing Ventilation Blower Cooling DC Axial Flow Fan for Persistent Performance, Diameter 355mm Energy-Saving Ventilation Exhaust Blower Cooling DC Backward Centrifugal Blower Industrial Fan and so on.