Section 15 Base metals and articles of base metal 72 Iron and steel 72 28 Other bars and rods; angles, shapes and sections of other alloy steel;..... 72 28 50 Other bars and rods, not further worked than cold-formed or cold-finished 72 28 50 00 Other bars and rods, not further worked than cold-formed or cold-finished Commodity Code Description 72 28 50 00 000 Other bars and rods, not further worked than cold-formed or cold-finished