721610 U, I or H sections, not further worked than hot-rolled, hot-drawn or extruded, of a height of less than 80 mm (3.15 inches)
721621 L sections , not further worked than hot-rolled, hot-drawn or extruded, of a height of less than 80 mm (3.15 inches)
721622 T sections, not further worked than hot-rolled, hot-drawn or extruded, of a height of less than 80 mm (3.15 inches)
721631 U sections , not further worked than hot-rolled, hot-drawn or extruded, of a height of 80 mm (3.15 inches) or more
721632 I sections (standard beams), not further worked than hot-rolled, hot-drawn or extruded, of a height of 80 mm (3.15 inches) or more
721633 H sections, not further worked than hot-rolled, hot-drawn or extruded, of a height of 80 mm (3.15 inches) or more
721640 L or T sections, not further worked than hot-rolled, hot-drawn or extruded, of a height of 80 mm (3.15 inches) or more
721650 Other angles, shapes and sections, not further worked than hot-rolled, hot-drawn or extruded
721660 Angles, shapes and sections, not further worked than cold-formed or cold-finished
721690 Other Angles, Shapes and Sections of Iron or Non-alloy Steel
