… Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel. …
Explanatory notes
… 7304.90 - Other Tubes, pipes and hollow profiles of this heading may be manufactured by the following processes : … ‑ hot‑finishing : in this case, the blank after reheating passes through a sizing mill or a stretching mill … or gas, tubes and pipes suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces, …