Flexible graphite products, graphite plates, sealing rings flexible graphite products, graphite plates, sealing rings, etc. have high resilience, good sealing, self-lubricating and other characteristics. They are used for leakage points and sealing of pumps, valves and pipes in petroleum, chemical, machinery, medicine and other fields. Flexible graphite products,graphite board,sealing rings with good recurrent force,good sealing conditions and selelubrication property(for leaky point and seal of pumps,valves and pipes usedin petrol,chemicals,machinery and pharmaceutical industry). Natural graphite powder is mainly used for refractory materials, anti-oxidation coating materials for smelting furnaces, thermal insulation materials, stabilizers for industrial initiating explosive materials, desulfurizers for smelting industry, catalysts for chemical fertilizer industry and production of pencil leads. Flexible graphite products have excellent sealing performance, with rebound rate of 20-30%, compression rate of 25-31%, no softening point and melting point of 3790 ℃. The friction coefficient is very low (0.08-0.12), which is resistant to acid and alkaline corrosion, so it can meet the requirements of mechanical seals. Products include flexible graphite plate, flexible graphite sealing ring, flexible graphite packing, flexible graphite corrugated belt, etc.