... other size and shape customs General informatin of ndfeb magnet:1.Shape:disc magnet 2.Size:diameter 5-50mm, thickness 1-35mm ... 30H-45H, 30SH-42SH 4.Various coatings Material Grade of NdFeB magnet1 Magnet NN35, N38, N40, N42, N45, N48, N50, ... , 30EH, 33EH, 35EH NdFeB ProductsNeodymium permanent magnet material available in the early 1980s, is now widely used in motor (motor), speakers (speaker), toys ...