Section 15 Base metals and articles of base metal 73 Articles of iron or steel 73 06 Other tubes, pipes and hollow profiles of iron or steel, welded, nes 73 06 90 High-pressure pipe with a yield strength not less than 42,000 psi, with an internal d 73 06 90 91 High-pressure pipe with a yield strength not less than 42,000 psi, with an internal d Commodity Code Description 73 06 90 91 00 High-pressure pipe with a yield strength not less than 42,000 psi, with an internal d
