Galvanized steel are mainly applies in some professions, such as constructions. For the constructions, it mainly used as roofs of some industrial, residential constructions to preventing from corrosion. For the light industry, it used to produce outer cover of electrical appliances, chimney, kitchen utensil and corrosion-proved parts of automobiles. And it is also used as storage and transport in farming, animal husbandry, fishery area.