Generally, faucets are made of anti-corrosion products. Brass bath faucets and stainless steel faucets, among others, are the most common, but less expensive models and are also made of zinc alloy. Today's faucet finishes are less likely to peel or tarnish and are typically made of brass, nickel, pewter, or gold. The sky really is the limit. Titanium and epoxy coating will keep the finish...