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 40 Tubes and pipes, welded, circular, of stainless steel, nes Commodity Code Description 73 06 40 00 Tubes and pipes, welded, circular, of stainless steel, nes 73 06 40 11 With an external diameter less than 12.5 mm 73 06 40 19 Other 73 06 40 20 Stainless steel pipes and tubes, with an external diameter exceeding 105 mm 73 06 40 30 Pipes and tubes containing by weight at least 30 % of nickel, with an external diamet 73 06 40 90 Other
