Section 15 Base metals and articles of base metal 73 Articles of iron or steel 73 06 Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel. Commodity Code Description 73 06 11 Welded, of stainless steel 73 06 19 Other 73 06 21 Welded, of stainless steel 73 06 29 Other 73 06 30 Other, welded, of circular cross-section, of iron or non-alloy steel 73 06 40 Other, welded, of circular cross-section, of stainless steel 73 06 50 Other, welded, of a circular cross-section, of other alloy steel 73 06 61 Of square or rectangular cross-section 73 06 69 Of other non-circular cross-section 73 06 90 Other
