MILL FINISH GI (Galvanized Iron) COILS. Mill Finish coils : Thickness range 0.25mm - 2mm. Std. Width is 1220mm. Other thicknesses also possible, subject to qty. MILL FINISH ALUZINC COILS : Thickness range 0.25mm - 2mm. Std. Width is 1220mm. Other thicknesses also possible, subject to qty. MILL FINISH ALUMINUM COILS : Thickness: 0.2 mm to 2 mm, td. width is 1220 mm, other thicknesses also possible, subject to qty.