7216: Angles, shapes and sections of iron or non-alloy stee

721610: Sections, U/I/H, iron or non-alloy steel, nfw than hot formed <80mm 721621: Sections, L, iron or non-alloy steel, nfw hot-roll/drawn/extruded < 80m 721622: Sections, T, iron or non-alloy steel, nfw hot-roll/drawn/extruded < 80m 721631: Sections, U, iron or non-alloy steel, nfw hot-roll/drawn/extruded > 80m 721632: Sections, I, iron or non-alloy steel, nfw hot-roll/drawn/extruded > 80m 721633: Sections, H, iron or non-alloy steel, nfw hot-roll/drawn/extruded > 80m 721640: Sections,L/T,iron or non-alloy steel, nfw hot-roll/drawn/extruded > 80m 721650: Sections, nes, iron or non-alloy steel, nfw hot-roll/drawn/extruded 721660: Sections, nes, iron or non-alloy steel, nfw than cold formed/finished 721690: Angles/shapes/sections, iron or non-alloy steel, nes 7216: Angles, shapes and sections of iron or non-alloy stee