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 (other than cast iron) or steel. Commodity Code Description 73 04 11 Of stainless steel 73 04 19 Other 73 04 22 Drill pipe of stainless steel 73 04 23 Other drill pipe 73 04 24 Other, of stainless steel 73 04 29 Other 73 04 31 Cold-drawn or cold-rolled (cold-reduced) 73 04 39 Other 73 04 41 Cold-drawn or cold-rolled (cold-reduced) 73 04 49 Other 73 04 51 Cold-drawn or cold-rolled (cold-reduced) 73 04 59 Other 73 04 90 Other