580 yuan Korean bionic rhinoplasty prosthesis introduced by Changde Demei Plastic Surgery has excellent biocompatibility (there are many micropores, which can make human autologous tissue cells grow, establish blood circulation, and "blend in" with autologous tissue, so it feels soft and elastic, and there is almost no difference with autologous tissue. It is also very strong and will not be stretched or torn. Approved by FDA, it is the best, safest and most reliable molding filling material in the world. Different from other materials, expanded PTFE may cause rejection reaction in human body, so it has no sequelae and can stay in human body permanently, and does not need "anti-rejection" treatment after implantation. In addition, so far, there are 4 million cases of implanted expanded polytetrafluoroethylene in the world, and none of them have allergic and rejection reactions to this material.