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 90 Seamless iron/steel tubes/pipes/profiles of non-circular x-section Commodity Code Description 73 04 90 00 Seamless iron/steel tubes/pipes/profiles of non-circular x-section 73 04 90 10 High-pressure pipe with a yield strength not less than 42,000 psi 73 04 90 30 Other, having an external diameter of less than 140 mm and containing less than 0.45 73 04 90 90 Other
