Section 15 Base metals and articles of base metal 72 Iron and steel 72 13 Iron/steel bars androds,hot-rolled,in irregularly wound coils,of iron or non-alloy steel 72 13 91 Of circular cross-section measuring less than 14 mm in diameter 72 13 91 00 Of circular cross-section measuring less than 14 mm in diameter Commodity Code Description 72 13 91 00 000 Of circular cross-section measuring less than 14 mm in diameter