DX51D SGCC Coating Cold Rolled Galvanized Steel Coil 

0.12-0.5 mm Steel Coil for Roofing coil are mainly used in building, transport, home appliances, solar energy, furniture. 0.12-0.5 mm prepainted coated steel coil especially in home appliances.0.12-0.5 mm steel coil are mainly used as the air conditioners, freezers. Using 0.12-0.5 mm Galvanized Steel Coils or prepainted coils as the substrate, prepainted coated coil is made by first going through surface pretreatment, then coating for one or more layers, and funally baking and cooling. Galvanization is the leading method to protect metals from environmental elements that cause corrosion, rust, and the eventual weakening of the steel. Hot-dip galvanizing deposits a thick, robust layer of zinc iron alloys on the surface of a steel item.When exposed to the atmosphere, pure zinc reacts with oxygen to form zinc oxide which further reacts with carbon dioxide to form zinc carbonate. A dull, grey, fairly strong material that stops further corrosion in most circumstances, protecting…

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