... ,shining surface 3. more size can be custom-made screw neodymium magnet material: sintered NdFeB magnet;rare earth permanent magnetsshape: according ... -N45M, N35H-N45H, N35SH-45SH, and N28EH-N33EH for NdFeB (Neodymium magnet), and Y25, Y30, Y30BH, and Y35 for Ferrite magnet ... certified.5) Use of magnetOur magnets are used for motor speaker, hardware, package, cabinet lock ,door lock and health care ...