Galvanized coils can therefore be divided into hot-rolled galvanized coils and cold-rolled hot-dip galvanized coils, which are mainly used in construction, home appliances, automobiles, containers, transportation and household industries. Especially industries such as steel structure construction, automobile manufacturing, and steel warehouse manufacturing. Their main characteristics are: strong corrosion resistance, good surface quality, conducive to deep processing, economical and practical, etc.