Section 15 Base metals and articles of base metal 72 Iron and steel. 72 10 Flat-rolled products of iron or non-alloy steel, of a width of 600 mm or more, clad, plated or coated. 72 10 90 Other Commodity Code Description 72 10 90 00 Other 72 10 90 10 Roofing sheets 72 10 90 90 Other