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@DFP
FYI
The white oxide that forms on Aluminium actually protects the metal underneath. It is thin, hard and airtight, just stays as it is once it is formed. Not like rust.
But you have to ask yourself why its happened to just those eyelets. Are they loose and rattling? Or maybe the rim has bulged (about to crack) on those eyelets, which made the paint/anodising crack off, exposing the metal to the air.