Section 15 Base metals and articles of base metal 73 Articles of iron or steel 73 04 Tubes, pipes and hollow profiles,seamless, of iron (excl. castiron)or steel 73 04 22 Drill pipe of stainless steel 73 04 22 00 Drill pipe of stainless steel Commodity Code Description 73 04 22 00 000 Drill pipe of stainless steel
