... ,N35M-N50M,etc. 4.Coating:NiCuNi,Zn,etc. neodymium disc magnet Product Image Descriptionneodymium disc magnet1.Material:rare ... earth ,Neodymium -Iron-Boron2.Shape:Tile,Ring,Disc,Round,Block,Cylinder ... Loudspeakers, Magnetic hooks & holder, Filters, Automobiles, Jewelry.Box,etc. Neodymium magnet advantages a) High energy b) Very high Hc and ...