Explanatory notes
… sections, not further worked than hot‑rolled, hot‑drawn or extruded, of a height of less than 80 mm - L … are usually produced by hot‑rolling, hot‑drawing, hot‑extrusion or hot-forging or forging blooms or billets. The … (e.g., girders, beams, pillars and joists) are used in the construction of bridges, buildings, ships, etc.; lighter …
