... n38 3.coating:Gold 4.meet:ISO9001:2000 , CTI Test cylinder NdFeB magnet Magnet(NdFeB magnet) is made from Neodymium,Iron ... , Epoxy, Gold, and etc.Sizes: according to your requirementsShapes: disc, cylinder, sphere, block ,ring ,tile, arc, and etc.High magnetic performance ... Applications NdFeB Magnet are widely used in computers(voice coil motor of hard disc drive, pick-up of optical disk drive ...