How to fix Polished lip?

Hey all..I have a little problem, just wanted some advice. I have a pair of Linea's 215/35ZR18 ( JDM guys might kno those rimz ). Well I banged them up a bit, had them fixed so the dents are gone. Now where they banged out/fixed the dents the polished lip is scuffed up(not polished at all). This isnt a chrome lip so I am not sure how I would get this to be polished again? Any ideas suggetions? Thanks!