SECTION XV - BASE METALS AND ARTICLES OF BASE METAL > CHAPTER 73 - ARTICLES OF IRON OR STEEL > 7309 00 Reservoirs, tanks, vats and similar containers for any material (other than compressed or liquefied gas), of iron or steel, of a capacity exceeding 300 l, whether or not lined or heat-insulated, but not fitted with mechanical or thermal equipment > For gases (other than compressed or liquefied gas)