N35-N52 Ni Zn Coating Large permanent magnet 1.Grade:N35-N522.Coating: Ni-Cu-Ni, Zn, epoxy, ... as picture or Customized3. Size:customized4.Application: TV, Sensors, Servo motor, Motors, Rotors, Wind turbines/wind generators, Loudspeakers, loudhailer, Magnetic hooks ...