Galvanic corrosion (also called ' dissimilar metal corrosion' or wrongly 'electrolysis') refers to corrosion damage induced when two dissimilar materials are coupled in a corrosive electrolyte. It occurs when two (or more) dissimilar metals are brought into electrical contact under water so when it rains this can happen when i was going through auto collision we ran into this prob and what we had to do was use a rubber mallot and hit the wheels in a star pattern that should get it off
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