NdFeB magnet is mainly made of Neodymium, Iron and Boron,.The surface treatment method include Zine, Nickel, Tin, ... is mainly made of Neodymium, Iron and Boron,with excellent magnetic property, abundant raw material and reasonable prices, NdFeB Magnet can ... , sound device magnetic suspension system,magnetic transmission machine and iatrical apparatus and etc. For NdFeB, its surface is usually treally ...