I have Black MB72 wheels that the clear coat and paint is starting to come off of. So, I have stripped 3 down of paint and want to leave unfinished, so I thought and just polish up. But, it appears as though the wheels where bead blasted or something prior to them painting.

Any wheel advice here as what to do with them? leave unpainted and try and polish or repaint. Do I need to keep them waxed or protected with something if I leave unfinished?