... magnet Magnet(NdFeB magnet) is made from Neodymium,Iron,Boron and some other transitive metallic elements to make it strong. General ... your requirementsShapes: disc, cylinder, sphere, block ,ring ,tile, arc, and etc.High magnetic performance (Br: 11,000 to 14,500 ... used in computers(voice coil motor of hard disc drive, pick-up of optical disk drive), mobile phones, wind generator, magnetic resonance ...