roofing sheet
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Corrugated Galvanized Steel Sheet Roofing Sheet GI/PPGI
GI Roofing Sheet is a corrugated sheet of carbon steel with a galvanized coating. The coating is created by dipping the straight sheet in hot molten zinc. The zinc ions bond with iron molecules in the steel to create a shiny, rust-resistant surface finish. This process is called galvanization.
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