... strong. General features:Grades:N33,N35,N38,N40,N42,N45,N48,N50,N52, (M, H, SH, EH, UH )Coatings: Ni, Ni ... , Epoxy, Gold, and etc.Sizes: according to your requirementsShapes: disc, cylinder, sphere, block ,ring ,tile, arc, and etc.High magnetic performance ... to 200 degrees C Products technologhy: Applications:NdFeB Magnet are widely used in computers(voice coil motor of hard disc drive, pick-up ...