Axial fan, External rotor motor, outside rotor air blower AXIAL FAN with external rotor motors:1) Frequency: 50 / 60Hz2) Fan blade diameters: 250mm,300mm, ... be multi-speedOur main product including Axial Fan Motor, Condenser Fan Motor, Shaded Pole Motor, Cross Flow Fans, AC fan, DC fan ... of refrigeration equipments, air conditioner, cooling and ventilation instrumentS, outside rotor air blower T200