NdFeB ring magnet https://www.zhijiangmagnet.com/

NdFeB, also known as NdFeB magnet, is a tetragonal crystal formed of neodymium, iron, and boron (Nd2Fe14B).ZHIJIANG Neodymium Magnet Manufacturer specializes in neodymium disc magnet, ring neodymium magnet for sale, Ndfeb magnet price is low and widely used.https://www.zhijiangmagnet.com/product/neodymium-magnet/ndfeb-ring-3-2-2.html