Section 15 Base metals and articles of base metal 72 Iron and steel 72 11 Flat-rolled products of iron or non-alloy steel, of a width of less than 600 mm, not clad, plated or coated 72 11 14 - - Other, of a thickness of 4.75 mm or more Commodity Code Description 72 11 14 00 - - Other, of a thickness of 4.75 mm or more