1 Thickness:0.17-0.8mm 2 Width:800-1250mm 3 Standard: JIS G3312 4 Inner diameter: 508mm,&610mm 5 Steel Grade:SGCC,DX51D 6 Zinc coat: Z40-Z120 7 Plate:Hot dipped galvanized plate 8 Painting thickness: 25+/-5 microns on top side &7+/-2 microns on back side 9 Color: white, red, blue or customized as per RAL color card.