Section 15 Base metals and articles of base metal 72 Iron and steel 72 20 Flat-rolled products of stainless steel, <600mm wide 72 20 12 Of a thickness of less than 4.75mm 72 20 12 00 Of a thickness of less than 4.75mm Commodity Code Description 72 20 12 00 000 Of a thickness of less than 4.75mm