... 2..grade n35 3.coating:nickel 4.meet:ISO9001:2000 , CTI Test magnetic NdFeB disk Magnet(NdFeB magnet) is made from Neodymium,Iron,Boron ... make it strong. General features:Grades:N33,N35,N38,N40,N42,N45,N48,N50,N52, (M, H, SH, EH, UH )Coatings: Ni ... , and etc.Sizes: according to your requirementsShapes: disc, cylinder, sphere, block ,ring ,tile, arc, and etc.High magnetic performance (Br: 11 ...