7207: Semi-finished products of iron or nonalloy steel

720711: Semi-fin prod, i/nas, rect/sq cross-sect cntg by wgt<.25% c, wdth<2X 720712: Semi-fin prod, iron/n-al steel, rect/sq cross sect, cntg by wgt<.25% 720719: Semi-fin prod, iron or non-alloy steel, cntg by wght <.25% carbon, ne 720720: Semi-fin prod, iron/non-alloy steel, containg by weight .25%/more car 7207: Semi-finished products of iron or nonalloy steel