GI Coil GI coil have a very strong corrosion resistance and long use life. StandardAISI, ASTM, BS, DIN, GB, JIS, etcGradeSGCC, DX51D, DX53D, DX54D, etcThickness0.15-3.0mmWidthless than 1500mmInner Diameter508/610mmZinc Coating60g/m2-180g/m2Coil Weight3-8 TonsSpangle Stateregular spangle, small spangle, big spangle, non-spangleSurface TreatmentChromate, Oil, Lacquer Seal, Phosphating, etc ...