There are the following related contents about "how long can the door sheet metal be repaired in general" that everyone cares about. It takes about three days to repair the door sheet metal. Firstly, the sheet metal is corrected, which is the initial forming process of automotive sheet metal spray painting, and then spray painting is carried out. The first primer is used to fill the sand holes and micropores at the bottom of the workpiece and add the lower coating. Automobile paint can protect automobile surface from corrosion, which requires high performance. It also requires good adhesion and strong scratch resistance, and needs to be polished again to protect the car from excessive contact with air. By painting and polishing, direct contact between the car body and air can be avoided, and premature aging of the car body can be avoided, resulting in premature maintenance of the car body. Using car paint can prolong the maintenance time of the car body. Million car purchase subsidy