Section 15 Base metals and articles of base metal 73 Articles of iron or steel 73 04 Tubes, pipes and hollow profiles, seamless, of iron (excl. cast), steel 73 04 21 Seamless iron or steel drill pipe of a kind used in drilling for oil/gas 73 04 21 00 Seamless iron or steel drill pipe of a kind used in drilling for oil/gas Commodity Code Description 73 04 21 00 00 Seamless iron or steel drill pipe of a kind used in drilling for oil/gas
