Galvanized steel coils are made by dipping thin steel sheets into a molten zinc bath to adhere a layer of zinc thin steel sheets on their surface. They are mainly produced by continuous galvanizing process, that is, the rolled steel sheets are continuously dipped into a molten zinc bath to make galvanized steel sheets; alloyed galvanized steel sheets. This type of steel sheet is also made by hot dip method, but after leaving the bath, it is immediately heated to about 500℃ to form an alloy film of zinc and iron. This type of galvanized coil has good coating adhesion and weldability.

Galvanized steel coils are most widely used in the construction industry. They can be used as covering materials for roofs, walls, ceilings and other buildings. Due to their excellent corrosion resistance and weather resistance, they can be used for a long time in environments exposed to wind, sun, rain and snow. At the same time, galvanized steel coils can also be used to manufacture building structural materials such as box beams, bridges, stairs, handrails, etc. They are widely used not only in the construction industry, but also in transportation, manufacturing and other industries.