... 4.meet:ISO9001:2000 , CTI Test magnetic NdFeB disk Magnet(NdFeB magnet) is made from Neodymium,Iron,Boron and ... strong. General features:Grades:N33,N35,N38,N40,N42,N45,N48,N50,N52, (M, H, SH, EH, UH ) ... 80 to 200 degrees C Products technologhy: Applications:NdFeB Magnet are widely used in computers(voice coil motor ... system, auto motors, etc. Certifications:ISO9001:2000SGSCTI NdFeB Magnetic disk