A normal steel sheet will rust almost immediately, but galvanizing will protect the steel. This galvanized, eltro-coated, hot-dipped process produces a silvery look or spangled finish. As a standard, several of our industrial metal siding, metal roofing, metal decking, corrugated metal panels and accessories are made in galvanized steel，It is most commonly used for commercial, agricultural, and industrial purposes, however, it is now also being recognized as an excellent form of residential roofing.