Polyether ether ketone (PEEK) is a special engineering plastic with excellent comprehensive properties. In the application of sealing ring, especially high pressure sealing, it can meet the sealing requirements of different occasions because of its excellent pressure resistance, fatigue resistance, corrosion resistance and temperature resistance.

However, the hardness of PEEK material is hard, which requires higher machining accuracy than NBR, PTFE and other soft sealing materials. The machining precision is high, which can meet its sealing requirements.