The PEEK fixing ring is made of polyetheretherketone (PEEK), which has excellent properties such as lightweight, high temperature resistance, and corrosion resistance. Reducing mass during mechanical operation means improving operational efficiency and reducing energy consumption. Secondly, PEEK material has excellent high temperature resistance, and even in high-strength working environments, PEEK fixing rings can maintain their dimensional stability and mechanical strength, effectively extending the service life of mechanical components. Furthermore, the corrosion resistance of PEEK fixing rings enables them to maintain stability in various harsh environments, without being damaged by chemicals or humidity. These characteristics make PEEK fixed rings one of the indispensable high-performance materials in modern mechanical manufacturing.