NdFeB is the world's most powerful magnetic properties of magnetic materials found in one of its magnetic properties can be widely used in ferrite than ten times greater than the first generation, second-generation high-almost double the rare-earth magnets. NdFeB rare earth permanent magnetic materials belonging to the third generation, known as the "permanent King", which has a high-grade products and high added value, using broad, is to create high-performance, small size, light weight magnetic functional device is the ideal material, in electric bicycles, motor vehicles, computer hard drives, electronic toys, electric tools and other products as well as other related fields such as have a wide range of applications, particularly in the drive motor (HDD), a new motor, magnetic resonance imaging (MRL) and other core components of the application of China, has an irreplaceable role. NdFeB magnetic high, rich in raw materials and low-cost characteristics, especially in recent years that the magnets in the heat resistance and corrosion resistance, etc. to have a greater improvement to being an alternative to other magnetic materials have become the mainstream magnetic materials, NdFeB industry, and therefore is considered a sunrise industry in the 21st century.