Sheet metal painting is a kind of automobile repair technology, which is to repair the deformed part of automobile metal shell. For example, if the car body shell is knocked out of a pit, it can be restored to its original state by sheet metal, and then the deformed car metal surface can be restored to the same brightness as other intact places by spraying special paint. Generally speaking, painting in automotive sheet metal is very easy to learn, and it takes 2-3 months to learn. You can come to a professional automobile maintenance school to study.