Section 15 Base metals and articles of base metal 72 Iron and steel 72 08 Flat-rolled products of iron or non-alloy steel, of a width of 600mm or more, hot-rolled, not clad, plated or coated. 72 08 53 Of a thickness of 3 mm or more but less than 4.75 mm Commodity Code Description 72 08 53 00 Of a thickness of 3 mm or more but less than 4.75 mm