... Epoxy resin,etc. coated magnets can be produced into square,circular,circular ring,tile-shape,fan-shape,round etc. Customized NdFeB magnets ... the coating, shape, size Surface treatment: Ni, Zn, Epoxy, Gold, Silver, Tin, Ni+Cu+Ni and Cr3+ZnSize ... work temperature. 7. Wide Application of NdFeB, AlNiCo & SmCo magnets Speakers, Earphones, Microphones, Loudspeakers, Mobile Phone, Automobile, Motor, ...