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 70 Angles, shapes and sections of alloy steel 72 28 70 00 Angles, shapes and sections of alloy steel Commodity Code Description 72 28 70 00 00 Angles, shapes and sections of alloy steel
