Polyether ether ketone (PEEK) - is a high-performance semi-crystalline thermoplastic. As the most famous and most important member of the polyaromatic ether, this material still has excellent mechanical and excellent mechanical energy under thermal load. Excellent chemical resistance and high working temperature (250 ℃) make materials the most used materials for high pressure parts. Its excellent size stability, and high creep stability, allow the peek material to apply to the most complex addition artifacts.