Section 15 Base metals and articles of base metal 72 Iron and steel. 72 14 Other bars and rods of iron or non-alloy steel, not further worked than forged, hot-rolled, hot-drawn or hot-extruded, but including those twisted after rolling Commodity Code Description 72 14 10 Forged 72 14 20 Containing indentations, ribs, grooves or other deformations produced during the rollin 72 14 30 Other, of free-cutting steel 72 14 91 Of rectangular (other than square) cross-section 72 14 99 Other