Denaifu tire repair technology has obtained the national invention patent repair technology. It has gone through various aspects including application, preliminary review, defense, and final review. Successfully obtained patent certificate. Moreover, this technology has been used for ten years and has repaired countless damaged tires for car owners across the country. To learn this technology, you must choose a company that has been applying this technology. Teach the most professional and comprehensive fracture repair technology. As the saying goes, see more and know more. Denaf signed a contract to teach and teach every student step by step. After completing the course, they will be awarded an exclusive invention patent authorization bronze medal to increase the students' visibility and credibility. I highly recommend De Naifu! Strength, professionalism and efficiency~