Section 15 Base metals and articles of base metal 72 Iron and steel 72 21 Bars and rods, hot-rolled, in irregularly wound coils, of stainless steel 72 21 00 Bars and rods, hotrolled, in irregularly wound coils, of stainless steel. 72 21 00 00 Bars and rods, hotrolled, in irregularly wound coils, of stainless steel. Commodity Code Description 72 21 00 00 000 Bars and rods, hotrolled, in irregularly wound coils, of stainless steel.