Section 15 Base metals and articles of base metal 72 Iron and steel 72 16 Angles,shapes and sections of iron or non-alloy steel 72 16 40 L or T sections, not further worked than hot-rolled, hot-drawn or extruded, of a........ 72 16 40 00 L or T sections, not further worked than hot-rolled, hot-drawn or extruded, of a........ Commodity Code Description 72 16 40 00 000 L or T sections, not further worked than hot-rolled, hot-drawn or extruded, of a........