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 50 With an external diameter less than 12.5 mm 73 06 50 91 With an external diameter less than 12.5 mm Commodity Code Description 73 06 50 91 00 With an external diameter less than 12.5 mm
