... N33SH-N48SH, N33UH-N38UH. 3.Shape of permanent Neodymium NdFeB Magnet: Disc, Ring, Block, Segment, Cylinder, Trapezoid, Customized Design ... for common specifications, +/-0.15mm for big blocks 5.Coating of permanent Neodymium NdFeB Magnet: Ni, Ni-Cu-Ni, Zn, ... Epoxy, Parylene, etc. 6.Applications of permanent Neodymium NdFeB Magnet: Motors, Generators,Neodymium Pot,Speakers,Sensors,Earphones and other ...