Anti-rust technology of automobile metal?

Automobile rust removal method: 1. Prepare a pair of gloves, goggles and dust mask; 2. Cover any area on the vehicle surface that you don't want to get dirty, and divide the area that needs rust removal with oil-proof tape; 3. Wrap the car with some masking paper, and then stick all the edges with adhesive tape; 4. When there is a groove line on the surrounding surface that needs derusting, paint along this line; 5. Use a grinder to remove paint and rust spots from rust; 6, according to the color of the car itself, go to the auto supplies store to choose the appropriate metal surface primer and painting; 7. Prepare the area to be primed, evenly spray external paint, and polish the surface with wet sandpaper; 8. Spray a thin layer of surface paint, polish the edge of the new surface paint to make it better mixed with the old paint, and then let the paint cure for 48 hours.