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 29 Casing and tubing with yield strength less than 80,000 psi, with threaded end 73 04 29 20 Casing and tubing with yield strength less than 80,000 psi, with threaded end Commodity Code Description 73 04 29 20 00 Casing and tubing with yield strength less than 80,000 psi, with threaded end
