... . It is mainly used as grindable granule and corrosives in electric power, metallurgy, mining, coal, and chemical industry when transporting ... and resin-lined steel pipes. They have a wide variety of application in mining, power plants, water conservation and metallurgical, coal, ... highest among all oxides.2.Corrosion resistant: Corundum is a neutral material, and is acid-proof and fouling -free.Heat ...