95&99 alumina ceramic seals, Using cast, hot-pressed, dry-pressed, such as molding process, Can mirror polishing process, accuracy up to ± 0.01, high mechanical strength, excellent high-temperature wear resistance, strong chemical corrosion-resistant performance, good air tightness, the electrical properties changing with temperature and frequency stability. used to the mechanical seal and campaign seal of all kinds of household water pump, agricultural pumps and other chemical pump, can well meets the requirements of the performance for sliding and sealing in the use of environment actually; Widely used in the industry of metallurgy, machinery, chemical industry, medicine, food, Corrosion-resistant pumps, cars, aerodynamic components, such as mechanical seal parts.