a):Low weight loss , Low tempt Coefficient , b): Coating: NICUNI and black epoxy. c): Used in industrial neodymium magnet,ndfeb magnetic material,magnet.a): Size Φ3----Φ280mm for Ring, and strange size.b): Grade cover N33-N52, N30M-N50M , N30H-N48H, N30SH-N45SH, N28UH-N40UH, N28EH- N38EH,33AH..c): Coating cover Ni, Zn , Phosphated ,Gold, Silver, Epoxy etc.d): Use Nd material rather than Pr-nd ...