Since the Chinese calendar is a lunisolar calendar, the last day of a year is also called lunar New Year's Eve (Traditional Chinese: å¤§å¹´å¤, Pinyin: dÃ niÃ¡nyÃ¨, translated: old, large, huge, major, important year's night).
While aluminium doesn't rust, it often becomes dull from corrosion, and is often encrusted with brake dust, calcium, lime, tarnish, grease, oil and hard water stains. Simply washing it off will not work, you need something stronger and more effective to do the job.
Remove rust that has caused minor pitting by rubbing the chrome polish onto the rusted areas with fine steel wool. Use the finest steel wool available to avoid scratching the chrome finish. Use aluminum foil and white vinegar if there is still rust on the bumper. Fold the aluminum foil so that it fits in the palm of your hand. Dip the foil in the white vinegar and then rub the foil over the rusted areas.