It can be magnetized using electromagnets, and can also be magnetized with existing magnets, using the same sex to repel the opposite sex to attract each other, the molecules inside are arranged in the same order, and there is magnetism. As long as the magnetite (ie the material used for iron) can be made into any shape , A magnet will do.

The raw material of the magnet is a kind of iron oxide, which is in powder form, firstly pressed into the required shape by a machine, then sintered at high temperature, and finally magnetized. After the completion of inspection and delivery.