It can be steel to prevent corrosion in the surface area subjected to increase the life of the plate coated with zinc,aluminum. Electro galvanized steel is carbon steel which has a corrosion-resistant zinc coating applied to 1 or equally of its sides by electro-deposition. The continuous electrolytic coating approach addresses http://cristianpzhnt.theobloggers.com/8547620/the-best-side-of-galvalume-corrugated-roofing-sheet