Galvanized color coated coil（PPGI）, also known as color coated sheet or color coated coil, is a steel plate with a zinc coating and an organic coating on its surface. This material uses galvanized sheet or galvanized aluminum sheet as the substrate, and after surface pretreatment (such as chemical degreasing and chemical conversion treatment), one or more layers of organic coating are applied on its surface, and then baked and cured to form the final product.