... used in DC motors in cars and some other industrial machines. 2. We are original manufacture of magnet 1.Property of ... , 30EH, 30EH, 33EH, 35EH) Magnet AH-(28AH,30AH,33AH)4.Coating: Nickel ,Zn,Black Epoxy,Ag,Au Etc5.Max working Temp ... or Air or Courier, kinds of transportation are available Nickel coating Neodymium disc Magnet