... No High and stable Performance N48 HR Brand Permanent Cylinder High Performance Ndfeb magnet is made from Neodymium, Iron, Boron and some ... to make it strong.1. General features of the NdFeB magnet:NdFeB Magnet Grades: N33, N35, N38, N40, N42, N48, N50, N52 ... interested in this motor magnet or any others, please contact me at any time. N48 HR Brand Permanent Cylinder High Performance Ndfeb ...