Product Introduction PPGI & PPGL (prepainted galvanized steel & prepainted galvalume steel) also known as pre-coated steel or color coated steel coil, It is a product made of hot-dip galvanized steel sheet, hot-dip galvalume steel sheet, electro-galvanized steel sheet, etc. After surface pretreatment, one or several layers of organic coating are applied on the surface and then baked...