When the fender liner is damaged, it needs to be repaired in a professional repair shop, and the owner cannot repair it himself. Fender, also known as fender, is divided into front fender and rear fender according to the installation position. Now the fenders of some cars have become a whole with the body, in one go. However, some car fenders are assembled independently, especially the front fender, because there are many collision opportunities, and it is easy to replace the whole piece when assembled independently.