73.04.3 -tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: --others, of circular cross section, of iron or non-alloy steel
73.04.39 -tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: --others, of circular cross section, of iron or non-alloy steel ---other:
73.04 -tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel:
73.04.3 -tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: --others, of circular cross section, of iron or non-alloy steel
73.04.39 -tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: --others, of circular cross section, of iron or non-alloy steel ---other: