The good comprehensive performance of PEEK makes it possible to replace traditional materials such as metals and ceramics in some fields to improve the comprehensive performance of products, and make the products lighter. PEEK maintains its excellent dimensional stability and good mechanical properties in a long time under high temperature steam environment. As a special polymer material, PEEK has high temperature resistance and good chemical resistance, excellent electrical properties, and flame retardant ( UL94 V-0). PEEK (polyether ether ketone) is a semi-crystalline thermoplastic.