... semi-finished cylinders to get a appropriate tolerance disc and then cut the disc magnets to the suitable size next mill ... ;7 . Magnets AH-(30AH, 33AH) Max working Tempt 230° C . Magnet Coatings Zn, Ni, Ni-Cu-Ni, Epoxy, CR3+ZN, NI ... loudspeakers, home appliance, hardware holder, Magnetic tool Holdings, Receiver etc .Disc magnets or Neodymium Segment magnets have thefollowing important factors :Outer ...