NdFeB bullet magnet has strong magnetic force and high intrinsic coercive force. It is widely used in our daily life. NdFeB magnet is made from Neodymium, Iron, Boron and some other transitive metallic elements to make it strong.1. General features of the NdFeB magnet:NdFeB Magnet Grades: N33, N35, N38, N40, N42, N48, N50, N52 (M, H, SH, EH, UH)Coating: Ni, Ni-Cu-Ni, Zn, Ag, Au and other special ...