Section 15 Base metals and articles of base metal 73 Articles of iron or steel 73 13 Barbed wire of iron or steel; twisted hoop or single flat wire, barbed or not, and loosely twisted double wire, of a kind used for fencing, of iron or steel. 73 13 00 Barbed wire and other fencing material, of iron or steel Commodity Code Description 73 13 00 00 Barbed wire and other fencing material, of iron or steel