Galvanized Sheet/Plate Metal
Galvanized Sheet/Plate metal is a coating of steel or iron with zinc, and is done to prevent rusting of the metal. The importance of galvanizing is due to the corrosion resistance of the zinc, which is greater than that of iron or steel and it serves as a protective coating on the exposed steel. Another advantage of galvanized steel is its low cost and is maintenance free.
The term galvanizing refers specifically to the application of a zinc coating by electroplating or hot-dipped zinc coating. A common difference is that hot-dip galvanization produces a much thicker, matte gray coating where as electroplated coatings tend to be thinner and are brightly reflective.