High chromium bricks (Cr2O3≥90%) are mainly used in coal chemical industry, chemical industry kilns, alkali-free glass fiber kilns, waste incinerators, gasification furnaces and other key parts of the kilns. Chrome corundum brick is mainly used for the lining of carbon black furnace, copper smelting furnace, molten pool of glass kiln, chute of steel rolling heating furnace, steel discharge platform.