... present, Our enterprise mainly produces Centrifugal fan and blower, external rotor axial fan,ventilation fan, Duct fan, shaded pole motor, external ... ,ISO(10) Illustration of Model YWF-68L15P41.YWF: Asynchronous external rotor motor2. 68: Motor air gap diameter3: L15: Core length code4 ... ,6,8 poles3. Products Display4. Factory Production Display Dia72-180 outer rotor motor