Section 15 Base metals and articles of base metal 73 Articles of iron or steel 73 05 Other circular tubes and pipes,external diameter >406.4mm, of iron or steel 73 05 11 Longitudinally submerged arc welded 73 05 11 00 Longitudinally submerged arc welded Commodity Code Description 73 05 11 00 000 Longitudinally submerged arc welded
