Galvanized Steel Coil Cold PPGI/GI for Wall Construction, Zinc Plate is produced by passing the Full Hard sheet which has undergone the acid washing process and rolling process through the zinc pot, thereby applying zinc film to the surface.With the development of industry, hot-dip galvanizing has been applied to many fields. The advantage of hot-dip galvanizing is that it has a long antiseptic life and adapts to a wide range of environments. It has been a popular antiseptic treatment method.