... to protect the surface. 3.Application in electronic components Toroidal Core MagnetMaterial: Sintered Neodymium Iron BoronExcellent strength: The highest (Bh)max ... prevent corrosion, such as Nickel, Zinc, Epoxy, etc.Application: Loudspeakers, Magnetic hooks, Motors, Rotors, Sensors, etc.Service: Provide test report and ...