Corundum alumina ceramic products with abrasion resistance, corrosion resistance, high temperature resistance and high strength cover all size of lining plate, pocelain plate, porecelain shaft, porcelain drum, porcelain ring and nozzle. Because of the rerplaceable characteristics, these products are widely used in high temperature furnace, abrasion resistance discharge channer, sandblast nozzle, sealring, corrosion resistant lining, glass kiln, bearing, thick film circuit board, paste, grinding tool and textile machine parts. With the development and progress of science and technology, the application of products will be wider and wider. Wooden box.