Section 15 Base metals and articles of base metal 72 Iron and steel 72 12 Rolled iron or non-alloy steel, <600mm wide, clad, plated or coated 72 12 20 Electrolytically plated or coted with zinc 72 12 20 00 Electrolytically plated or coted with zinc Commodity Code Description 72 12 20 00 000 Electrolytically plated or coted with zinc