How to clean old tube aluninum chairs


I have a set of old tubular aluminum chairs with redwood slats for seat and back. I know to sand and restain the redwood and replace slats that are deteriorated. My question is how to freshen up and clean the aluminum parts. They are not painted. There is some pitting on the aluminum. My kids got an old VW bus and these are from the same era and i want to surprise them with the chairs. They were Gpas.

q how to clean old tube aluninum chairs
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