Galvanized expanded metal sheet has higher corrosion resistance than expanded metal sheet without surface treatment. Galvanized refers to a process that covers mild Steel with a layer of zinc to provide good corrosion resistance. Galvanized expanded sheet metal is a very common structural material used in the automotive industry, construction, Bridges, frames, electrical towers, Signs, air conditioning systems, appliance parts, high strength Cables and many other uses. Galvanized metal is a great choice when low cost and relatively high strength are required.