It can undergo 3000 cycles of autoclave sterilization at 134°C. This characteristic meets the high sterilization requirements and requires repeated use of surgical and dental equipment. It can be manufactured with its creep resistance and hydrolysis resistance. Various medical devices that require high-temperature steam disinfection. What is particularly important is that PEEK is non-toxic, light in weight and corrosion-resistant, and is the closest material to human bones. Therefore, PEEK can be used instead of metal to make human bones.