1. Sheet metal treatment: The dents on the car body must be hammered and welded to restore them to their original state.

2. Putty treatment: A kind of clay (commonly referred to as putty) should be used in the uneven place after sheet metal.

3. Polishing treatment: different types of sandpaper should be used to polish the concave and convex surface of putty.

4. spray painting: spray paint on the damaged surface.

5. Baking paint: the paint surface needs to be dried quickly, and the vehicle needs to enter spray booth for "drying" operation. The repair is completed.