Section 15 Base metals and articles of base metal 72 Iron and steel 72 09 Flat-rolled products of iron or non-alloy steel, of a width of 600 mm or more, cold-rolled (cold-reduced), not clad, plated or coated. 72 09 18 Of a thickness of less than 0.5 mm Commodity Code Description 72 09 18 00 Of a thickness of less than 0.5 mm