Common metals and their manufacture, 73 Articles of iron or steel, 73.15 -chain and parts thereof, of iron or steel:, 73.15.8 -chain and parts thereof, of iron or steel: --other chains, 73.15.89.00.000.P -chain and parts thereof, of iron or steel: --other chains ---other, Importers, Common metals and their manufacture, 73 Articles of iron or steel, 73.04 -tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel:, 73.04.1 -tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: --tubes of the kind used in oil and gas pipelines , Common metals and their manufacture, 73 Articles of iron or steel, 73.04 -tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel:, 73.04.90 -tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: --other:, Companies

Customs glossary
Common metals and their manufacture
73 Articles of iron or steel
73.15 -chain and parts thereof, of iron or steel:
73.15.8 -chain and parts thereof, of iron or steel: --other chains
73.15.89.00.000.P -chain and parts thereof, of iron or steel: --other chains ---other
Common metals and their manufacture
73 Articles of iron or steel
73.04 -tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel:
73.04.1 -tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: --tubes of the kind used in oil and gas pipelines
Common metals and their manufacture
73 Articles of iron or steel
73.04 -tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel:
73.04.90 -tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: --other: