1. Only repair the scratched part, not the door. Of course, if you are afraid of color difference after repair, you can also repair the whole door. During maintenance, you need to check whether the scratched area of the car is serious to determine the degree of maintenance.

2. Car paint is a kind of paint sprayed on the car, which forms a protective film on the car surface to protect the car body from corrosion. Car paint used in automobiles has strong scratch resistance and gloss durability. After painting, it can be coated with film, which further protects the use effect of car paint, prevents it from affecting the service life of car paint, and makes the car pay too much for the maintenance of car paint, reducing trouble.