Galvanized steel contains a coating of zinc oxide, which coats and protects the inner layer of steel and prevents/slows oxidation, corrosion and rusting. Galvanization is a process which has helped metal roofs and siding remain in tact for decades.

Corrugated metal roofing is made from steel coils. Typically, the steel will have an underlying layer applied that is normally galvanized or galvalume. The material is either left unpainted or sent to a painter. These coils are then shipped to a metal roofing supplier and they will corrugate the panels.

Galvanized Corrugated Sheet is a cold-rolled continuous hot-dip galvanized steel sheet and steel strip with a thickness of 0.25-2.5 mm. It is widely used in construction, packaging, railway vehicles, agricultural machinery manufacturing and daily necessities.