Section 15 Base metals and articles of base metal 72 Iron and steel 72 17 Wire of iron or non-alloy steel 72 17 20 Steel core wire of a kind used for steel reinforced aluminium conductors (ACSR) 72 17 20 91 Steel core wire of a kind used for steel reinforced aluminium conductors (ACSR) Commodity Code Description 72 17 20 91 00 Steel core wire of a kind used for steel reinforced aluminium conductors (ACSR)