... is one of the high performance rare earth permanent magnets, which use neodymium (Nd), iron (Fe), and boron (B) as their main ... than other magnet alloys10. Applications: Widly used in industrial areas and Micro products, such as Motor, sensors, loudspeaker, windmill, ... National defence, Speaker, Computer, Biology project, Medical treatment, Instrument and Meter etc. Super Strength Rare earth magnet