Iron or non-alloy steel; bars and rods, not further worked than forged, hot-rolled, hot drawn or hot-extruded, but including those twisted after rolling

721410 Iron or non-alloy steel; bars and rods, forged, hot-rolled, hot-drawn or hot-extruded, but including those twisted after rolling 721420 Iron or non-alloy steel; bars and rods, hot-rolled, hot-drawn or hot-extruded, containing indentations, ribs, grooves or other deformations produced during the rolling process or twisted after rolling 721430 Iron or non-alloy steel; bars and rods, hot-rolled, hot-drawn or hot-extruded, including those twisted after rolling, of free-cutting steel 721491 Iron or non-alloy steel; bars and rods, hot-rolled, hot-drawn or hot-extruded, n.e.c. in heading no. 7214, of rectangular (other than square) cross-section 721499 Iron or non-alloy steel; bars and rods, hot-rolled, hot-drawn or hot-extruded, n.e.c. in heading no. 7214, other than of rectangular cross-section