Method 1:
1. extra-fine gauze paper - initial sanding
2. high speed drill with a round brush (self-modified) - final sanding
3. light wax
Note - start with sandpaper if there is a very prominent place you can use a scraper to repair. >3. light wax
Note - the beginning of sandpaper sanding if there is a very prominent place can be repaired with a scraper, pig bristle round brush the finer the better, if your home has an automatic shoeshine machine do not have to think about the 2 recommendations.
Method 2:
Sandpaper sanding smooth directly on the aluminum powder paint, and finally on the light wax can be.