It is widely used in metallurgical mines, electric power, petroleum, natural gas, textiles, paper making, food, chemical industry, machinery, electrical and other industries. Its main characteristics are as the follows:1. Extremely high wear resistance;2. Very high impact resistance;3. Corrosion resistance;4. Good self-lubrication;5. The unique resistance to low temperature;6. Not easy to form dirt;7. Long life-span;8.Easy installation.