... 4.meet:ISO9001:2000 , CTI Test magnetic NdFeB disk Magnet(NdFeB magnet) is made from Neodymium,Iron,Boron and some other transitive ... etc.Sizes: according to your requirementsShapes: disc, cylinder, sphere, block ,ring ,tile, arc, and etc.High magnetic performance (Br: 11,000 ... : 80 to 200 degrees C Products technologhy: Applications:NdFeB Magnet are widely used in computers(voice coil motor of hard ...