... 4. customized shapespermanent magnet for motor NdFeB Magnet1. Magnetic properties: Sintered NdFeB magnet is one of the ... , passivation ,tin and CR3 + Zn7. Application:Widely used in different applications, such as motors, sensors, microphones, wind turbines, ... wind generators, VCMs in hard disk drives, printer, switchboard, loudspeakers, magnetic separation ...