1967-68 dog dish hub cap repair?

[HeavyHauler]

I purchased some 67-68 dog dish hub caps recently and they are painted. I dont think they are stainless due to them being painted? Are these hubcaps just made of regular steel?

Two of the hub caps have some small dents that I would like to try and remove. I cannot find a good thread about the repair of hubcaps so if anybody has some tips on how to do it then it is appreciated.

Is there somebody who actually does this type of work professionally that you guys send them to?