1,OEM &ODM for HVAC&R ,enough capacity ... noise 4,corrosion resistance 5,ROHS authentication Product Feature1,Application of new polymer materials, larger air-flow, lower noise, ... inside):13.5Steel shaft diameter:Φ6Hole diameter of bush: Φ8Number of the vanes(pcs):35Rotation Direction: CWNow we ... for customers to choose ,and we will design new mould per month.Our products apply to electric fireplaces ...