The MIcrolite alumina wear-resieting lining plate and pieces are dry-compacted and burned with 1500 centergrade temperature to be special type wear-resisting ceramic. Its rockwell hardness is HRA80-90, only inferior to the diamond's hardness. The products are featured by wear-resisting, anti-impact and easy construction, etc. Its theoretic wear-resistance is equal to 260 times of manganese steel, 170 times of chrome steel. After actually surveying, it can effectively increase the service life of equipment more than 10 times. Application: Apply to material transfer equipment, inside and outside surface of powder separating equipment on iron & steel works, thermal & power plants,coats, and cements industries, etc.