… Containers for compressed or liquefied gas, of iron or steel. …
Explanatory notes
… 73.11 ‑ Containers for compressed or liquefied gas, of iron or steel. This heading covers containers of any … for the transport or storage of compressed or liquefied gases (e.g., helium, oxygen, argon, hydrogen, acetylene, … and measuring devices such as valves, taps, pressure gauges, level indicators, etc. Some (e.g., for acetylene) …