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 Other, having an external diameter of less than 140 mm and containing less than 0.45 73 04 31 40 Other, having an external diameter of less than 140 mm and containing less than 0.45 Commodity Code Description 73 04 31 40 00 Other, having an external diameter of less than 140 mm and containing less than 0.45
