Section 15 Base metals and articles of base metal 73 Articles of iron or steel 73 12 Stranded wire, cables... of iron or steel, not electically insulated 73 12 10 Plated or coated with brass and of a diameter not exceeding 3 mm 73 12 10 20 Plated or coated with brass and of a diameter not exceeding 3 mm Commodity Code Description 73 12 10 20 00 Plated or coated with brass and of a diameter not exceeding 3 mm