… or not drilled, punched or made from assembled elements; welded angles, shapes and sections, of iron or steel. …
Explanatory notes
… or not drilled, punched or made from assembled elements; welded angles, shapes and sections, of iron or steel. … of sections obtained by rolling, drawing, pressing, press‑folding or forming on roller machines, or by assembling rolled parts (e.g. by riveting, welding, crimping). These sections can be fitted to each …