This refractory product can be used in blast furnace iron troughs, slag troughs, swing spouts, working layers, etc. It is mainly composed of brown corundum, dense corundum (white corundum), silicon carbide, alpha alumina powder, silica fume, Lafarge 71 cement, tar pitch, metallic silicon, additives, etc., featuring advantages such as high-temperature resistance, abrasion resistance, and corrosion resistance.