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PPGI is pre-painted galvanized steel, also known as pre-coated steel, color coated steel etc. Using Hot Dip Galvanized Steel Coil as the substrate, PPGI is made by first going through surface pretreatment, then the coating of one or more layers of liquid coating by roll coating, and finally baking and cooling.
Prime quality of PPGI/GI/ pre painted galvanized steel coilare applied in a continuous process known as Coil Coating.The steel thus produced Pre-painted steel coil in this process is a prepainted, prefinished ready to Roofing sheets! Prime quality of PPGI/GI/ pre painted galvanized steel coil