Galvanized steel sheets are products in which the surface of cold-rolled steel sheets is coated with a layer of molten zinc, providing excellent corrosion resistance. They are mainly used in household appliances, construction materials, and the internal components of automobiles. Alloy galvanized steel sheets are cold-rolled steel sheets that have been treated with an alloyed zinc coating, providing excellent weldability and processability, and are mainly used for the inner and outer panels of a