… Reservoirs, tanks, vats and similar containers for any material (other than compressed or liquefied gas), of iron …
Explanatory notes
… ‑ Reservoirs, tanks, vats and similar containers for any material (other than compressed or liquefied gas), of iron … as fixtures for storage or manufacturing use, e.g., in factories, chemical works, dye works, gasworks, breweries, distilleries and refineries, and to a smaller …