Sheet metal means that your car has hit a pit or dent. Made of "sheet metal special" molding machine and sheet metal tools ... or your car has an accident and then called sheet metal.

Baking paint means leveling with putty and spraying primer after sheet metal is finished. The final topcoat is called baking paint ... in fact, the paint is sprayed in the original 4S shop or outside the repair shop ... but the sprayed paint is called baking paint ... Generally speaking, the paint is naturally dry. If you are in a hurry to drive, you can bake it with ultraviolet light ... and forget to adopt it manually.