Section 15 Base metals and articles of base metal 72 Iron and steel 72 13 Bars and rods, hot-rolled, in irregularly wound coils, of iron or non-alloy steel. 72 13 10 Containing indentations,ribs,groves or other deformations produced during rolling.... Commodity Code Description 72 13 10 00 Containing indentations,ribs,groves or other deformations produced during rolling....