... protect the surface. 3. Application in motors. Neodymium Arc Magnets: 1. Magnet: Sintered NdFeB Magnet 2. Characteristics:Super strong Br resident induction ... , Nickel+Epoxy, Nickel+Sn, Passivation, Zinc. 4. Applications of Neodymium Magnets:AC Motors, DC Motors, and so on.Computer rigid disc ...