Section 15 Base metals and articles of base metal 73 Articles of iron or steel 73 06 Other tubes, pipes and hollow profiles(eg.open seam...),of iron or steel, welded, nes 73 06 61 Of square or rectangular cross-section 73 06 61 00 Of square or rectangular cross-section Commodity Code Description 73 06 61 00 000 Of square or rectangular cross-section
