... coats to protect the surface. 3.Application in electronic components Toroidal Core MagnetMaterial: Sintered Neodymium Iron BoronExcellent strength: The highest (Bh ... corrosion, such as Nickel, Zinc, Epoxy, etc.Application: Loudspeakers, Magnetic hooks, Motors, Rotors, Sensors, etc.Service: Provide test report and ... test report according to customers’ request.New factory:Packing: Toroidal Core Magnet