HDG,PPGI,GA,GI steel coil GL 1.Thickness : ... :,914-1250mm 2.Alumiun -Zinc Coated 55% ,anti -finger HDG,PPGI,GA,GI steel coil GLAluminum Zinc Coated Steel CoilZincalume ... life-time for coated colorProduct Specification: Basic Substrate: cold rolled HDG / Galvalmue Quality: CQ DQ Application:Outdoor: roof, roof structure ... section and edge will cause dent and scratches. HDG,PPGI,GA,GI steel coil GL