... be attached and will keep your name tag secured and in place for the rest of the day.Our magnetic fasteners or badges ... solution for your needs.Neodymium-iron-boron magnet is one kind of the permanent magnets. Material Grade of NdFeB magnets: Magnet N ... , sensors, loudspeakers etc. 2) The coating of NdFeB magnets can be Zn, Ni, Ni-Cu-Ni, Epoxy, CR3+ZN, NI+AG, NI ...