... square meter factory AC Axial Fan(AC Fan, Axial AC Fan, Axial Fan, Fan Motor,AC Cooler Fan,AC Cooling Fan,Ventilation Fan)(80X80X25,80X80X38,92X92X25,110X110X25,120X120X25 ... %FRPBearing: Ball Bearing or Sleeve BearingInsulation: Class BInsulation Impedance: The case adds 500V DC to the coils, insulation impedance 100MΩ higher ...