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 31 Seamless iron/steel tubes/pipes/profiles, circular, cold-drawn... Commodity Code Description 73 04 31 00 Seamless iron/steel tubes/pipes/profiles, circular, cold-drawn... 73 04 31 10 Drillrod casing and tubing with pin and box threads 73 04 31 20 High-pressure pipe capable of withstanding a pressure of not less than 42,000 psi 73 04 31 40 Other, having an external diameter of less than 140 mm and containing less than 0.45 73 04 31 90 Other
