Careful we can find some now use the magnets are relatively high-tech industries concave magnets, magnetic levitation train as it is now is a good example, we used to think the plane is the fastest means of transport tool, but now there is a more convenient and faster means of transport - maglev train. Because of its orbit so that the magnetic suspended in the air, unlike other train while walking magnets need to touch the ground, so only by resistance from the air. Maximum speed maglev train more than 500 kilometers per hour, compared with column wheel speed rail over 300 km faster. These are used levitation force (ie magnetic attraction and repulsion) to drive the train. Because of its orbit so that the magnetic suspended in the air bow magnet, walking unlike other trains need to touch the ground, so only by resistance from the air. So magnets used in such an environment is very convenient to our lives and have brought a lot of walking convenience, let us have more use for their expectations. Many use the magnet can give us a lot of convenience cylindrical magnet, these are some of the different role. Magnet plays a very important role in our modern society, we can make different industries are not the same effect. Diamagnetic are some categories of substances, when in an external magnetic field, the magnetic field will produce a weak magnetic repulsion phenomenon. Refers to a paramagnetic material, the magnetic state. Some material may be affected by external magnetic field generating means with characteristics opposite magnetization vector. Such a substance having a positive magnetic susceptibility. Refers to a ferromagnetic material the magnetic state of having spontaneous magnetization phenomenon. When we use a magnet or the need for good understanding of these products, give us more help. Irregular magnet magnet _ _ Xin Tong new magnetic provided by the Dongguan City, Tong Xin magnetic Limited. Xin Tong, Dongguan City, the new magnetic Limited (www.dgxtxmagnet.com/) strong, credible, in Dongguan, Guangdong magnetic materials industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the new Tong Xin magnetic and you hand into the brilliant, for a better future!