Product technical specification varies from its grade.Ndfeb magnets are used in audio, magnetic couplings, power generators, reed switch Applications, sensors, dc motors, automotive starters, servomotors, and a multitude of other Applications. Sintered ndfeb magnet is mainly produced according with custom design, so there are no standard sizes. The magnets could be made into following shape: discs , cylinders, cubes, tubes, plates, rings, arc segments and other special shape.