Product:NdFeB magnetic Material:Neodymium-Iron-Boron Coating:Ni-Cu-Ni ,Nickel ,Zn ,Gold ,Cr ,Silver ,Copper Black ,Epoxy ,Chemical ,PTFE Parylene Grade:N35-N52,30M-50M,30H-48H,28SH-45SH,28UH-42UH,28EH-38EH,28AH-38AH Shapes:Disc, Cylinder, Block, Ring, Countersunk, Segment, Trapezoid, Irregular shapes and customized made. 3.Coating:Ni, Ni-Cu-Ni, Zn, Tin, Epoxy, Ni-Ag, Ni-Au, etc.    4.Applications: Motors, Generators,NdFeB Pot Magnet,Speakers,Sensors,Earphones and other musical