It is mainly used for making bearings and refining high-purity indium, and is also used in the electronics industry and electroplating industry. It is mainly used as a cladding layer (or made into an alloy) to enhance the corrosion resistance of metal materials, and is widely used as an electronic device. Alloy coating as reflector. Indium alloys are used as reactor control rods, etc. Indium phosphide and indium antimonide are semiconductor materials.