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 11 Of a thickness of 4.75mm or more 72 20 11 00 Of a thickness of 4.75mm or more Commodity Code Description 72 20 11 00 000 Of a thickness of 4.75mm or more