Section 15 Base metals and articles of base metal 72 Iron and steel 72 07 Semi-finished products ofiron or non-alloy steel 72 07 11 Of rectangular (incl. square) cross-section, the width measuring < 2x the thickness 72 07 11 00 Of rectangular (incl. square) cross-section, the width measuring < 2x the thickness Commodity Code Description 72 07 11 00 000 Of rectangular (incl. square) cross-section, the width measuring < 2x the thickness