Chrome is a mixture of metals, primarily Chromium and Nickel. It is a very resilient and brillant finish that can last a lifetime if properly maintained.
Tools & Technique
To clean and polish chrome, try using a mild detergent to remove dirt and grease.
If there is still residue, try using a polishing paste or commercially available metal polish.
Once the chrome is clean, polish with a cotton rag. Old cloth diapers are the best, but any thick cotton cloth that has been previously washed will polish without leaving lint.
Never use caustic cleaners such as oven cleaner or abrasive cleansers like comet on chrome, as surface damage will result in rapid deterioration.
To maintain the luster of chrome, try applying a coat of automotive wax.