Section 15 Base metals and articles of base metal 72 Iron and steel 72 11 Rolled iron or non-alloy steel, <600mm wide, not clad, plated or coated 72 11 23 Containing by weight less than 0.25% of carbon 72 11 23 00 Containing by weight less than 0.25% of carbon Commodity Code Description 72 11 23 00 000 Containing by weight less than 0.25% of carbon