1.Sintered NdFeB magnet, strong and permanent 2.Widely used in motors, generators and so on NdFeB magnet is made from Neodymium, Iron, Boron and ... elements to make it strong.1. General features of the NdFeB magnet:NdFeB Magnet Grades: N33, N35, N38, N40, N42, N48, N50, ... and coatingsShape: arc, tile, square, cylinder and magnetic ring with various sizesHigh magnetic performance (Br: 11,000 to ...