Material: Neodymium NdFeB arc Magnet Grade: 35-50(N, M, H, SH) Coating: Zn, Ni, ... , Zn, Epoxy, Parylene, etc. 6.Applications of permanent Neodymium NdFeB Magnet: Motors, Generators,Neodymium Pot,Speakers,Sensors,Earphones and other musical instruments ... , Arc and other irregular shapes can be made according to customer's sample or drawing9. More pictures for permanent Neodymium NdFeB magnet:10 ...