... mainly made of Neodymium, Iron and Boron, with excellent magnetic property,strong remanence , high intrinsic coercive force,and ... used in industry area such as mini-motor Permanent magnetic resonance sound device magnetic suspension, DC motors, linear motors, loud speakers ... -(N28AH, N30AH, N33AH) Our factory can manufacture NdFeB permanent magnet in various size, according to the customer's ...