prepainted galvanized steel sheets(ppgi color coated coil manufacturer), Standard: ASTM, DIN,GB Grade: CGCC, Prepainted galvanized steel coils ( ppgi color coated coil manufacturer ):PPGI is the ... steel, also known as precoated steel, coil coated steel, color coated steel etc.A galvanised steel sheet in coil form is cleaned, pretreated, applied with ...