The rear panel of the car is located under the trunk of the car and installed in a circle below the trunk of the car. Generally speaking, the back cover and frame of an automobile are not integrated, but welded together. If the rear fairing is cut off, removed or replaced, it is an accident. If you just knock, if you pull the bench to repair it without cutting and welding, it's not an accident. Under normal circumstances, the next backboard can be gently pulled out with a bench or hammer without cutting the backboard. If the spare tire floor is severely deformed, especially if the girder is scratched, the rear cover must be cut off. Cut off the backboard, level the girder and the spare tire chassis, and finally weld the new backboard. The ground deformation of most front panels and their spare tires does not affect the handling function of the car, but it is a big accident because of cutting and welding. When repairing the backboard by cutting and welding, rubber must be coated on the solder joints to prevent rust.