Skull defects are not uncommon. Such as falling objects, traffic accidents or brain surgery. It may cause skull defect, and skull repair surgery is also a routine operation in neurosurgery. Deputy Chief Physician Mu Cangshan of Aviation General Hospital introduced that the skull repair material used in skull repair is a very advanced PEEK material, also called PEEK material. This peek skull repair material is a special polymer material with good biocompatibility, complex molding and mechanical properties.