… Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or …
Explanatory notes
… 73.04 - Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or … steel 7304.19 - - Other - Casing, tubing and drill pipe, of a kind used in drilling for oil or gas : 7304.22 - - Drill pipe of …