2. wear resistance at high temperatures, high loads, corrosion and other harsh environments, PEEK material has excellent wear resistance. 3. High-strength PEEK has the best mechanical strength, toughness and rigidity and balance of both plastic. Particularly its excellent alternating stress fatigue resistance is the most outstanding of all plastics can be comparable with the alloy material. The self-lubricating PEEK has outstanding sliding characteristics in all plastics, suitable for the stringent requirements of low coefficient of friction and resistance to abrasion purposes. In particular, carbon fiber, graphite mixing proportion of each modified PEEK self-lubricating properties better. 5. The chemical resistance (corrosion resistance) PEEK has excellent chemical resistance, in ordinary chemicals, it can be dissolved or damaged only its corrosion resistance and nickel steel similar. 6. The flame retardant polymer PEEK is very stable, 1.45mm thick sample, without any flame retardant can achieve the highest standards. 7. peeling resistance PEEK excellent peeling resistance, it can be made very thin wire or coated wire, can be used in harsh conditions. 8. fatigue resistance PEEK has the best fatigue resistance in all resin. 9. The electrical properties over a wide temperature and frequency range, PEEK can maintain stability, excellent electrical properties. 10. The ability of anti-γ radiation radiation resistance is very strong, more than the best general-purpose polystyrene resin in radiation resistance. Can be made still maintain γ radiation dose of 1100Mrad good insulating ability when high performance wire. 11. Hydrolysis of PEEK and its composites from chemical influence of water and high-pressure steam, products made of this material at high temperature and pressure of water will maintain the outstanding characteristics of continuous use.