As the second generation of rare earth permanent magnet, Neodymium magnets are mainly composed of Samarium, Cobalt, and Iron. Neodymium block magnets can be classified to 1:5 type and 2:17 type. SmCo block magnets have excellent resistance to corrosion, oxidation, high temperature, and demagnetisation. It is still widely used in aerospace, automotive, and military applications. The most representative application of Neodymium block magnets in Fortune Muscular Magnet Magnetics is Maglev train magnets.