PEEK material can adapt to the working temperature of 260 ℃, and can also work continuously, reaching 330 ℃ in a short term. PEEK has the heat resistance and chemical stability of thermosetting plastics and the molding processability of thermoplastics. The long-term use temperature of PEEK is about 260-280 ℃, the short-term use temperature can reach 330 ℃, and the high pressure resistance can reach 30MPa. PEEK is a good material for high temperature sealing rings. PEEK products are suitable for all kinds of harsh working conditions. PEEK also has excellent properties such as good self lubrication, easy processing, stable insulation, hydrolysis resistance, etc., which makes it widely used in aerospace, automobile manufacturing, electronics and electrical, medical and food processing and other fields. Due to the unique performance advantages of PEEK materials, PEEK products can be widely used in petrochemical, electronic and electrical, instrumentation, mechanical and automotive, medical and health, aerospace, military nuclear energy and many other fields.