… Sheet piling of iron or steel, whether or not drilled, punched or made from assembled elements; welded angles, shapes and sections, of iron or steel. …
Explanatory notes
… 73.01 ‑ Sheet piling of iron or steel, whether or not drilled, punched or made from … simply interlocked or even by having their longitudinal sides juxtaposed. For this purpose, both types have, on the longitudinal sides at least, connecting devices (e.g. grooves, flanges, interlocks). This …