Use pickling paste or spray to assist the rusted parts to re passivate and form chromium oxide film to restore their corrosion resistance. After pickling, it is very important to wash them properly with clean water in order to remove all pollutants and acid residues. After all treatment, use polishing equipment to polish again, and then use polishing wax to seal. For the parts with slight rust spots, the 1:1 mixture of gasoline and engine oil can also be used to wipe the rust spots with a clean cloth.
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