Steel Coil & StripChina Thickness 0.27mm Galvalume Steel Coils ASTM a 792 and a 755 Base Coating Alloy Aluminum and Zinc 120G/M2 Painting Top Side 20 Micros with Ralfs 3002, Find details about China PPGL, Prepainted Steel Coil from Thickness 0.27mm Galvalume Steel Coils ASTM a 792 and a 755 Base Coating Alloy Aluminum and Zinc 120G/M2 Painting Top Side 20 Micros with Ralfs 3002