7207: Semi-finished products of iron or non-alloy steel

720711: Rectangular iron or non-alloy steel bars, <.25%C, width< twice thicknes 720712: Semi-finished bars, iron or non-alloy steel <0.25%C, rectangular, nes 720719: Semi-finished product, iron or non-alloy steel <0.25%C, nes 720720: Semi-finished product, iron or non-alloy steel >0.25%C 7207: Semi-finished products of iron or non-alloy steel