I've been tasked with trying to find a business to polish bicycle hubs made of aluminum (6061). I know virtually nothing about this process so i am at a loss as to how to assess the various companies offering polishing and buffing - other than on price. Any advice on what to ask or look for so I can find a company that can provide a shiny, mirror-like finish? Is it reasonable to ask for a sample?
Ideally I'd like to find someone in the Denver metro area.
TIA,
Sarah