Galvanization is the process of applying a protective zinc coating to steel or iron in order to prevent it from rusting. Galvanized iron (GI) sheets are steel sheets which are basically coated with zinc and include a range of hot dip galvanized and electro-galvanized steel sheets. These are most commonly used in construction projects. Other than that, they are also used for electronics, nails, nuts, bolts, piping, as well as for certain vehicles.