Section 15 Base metals and articles of base metal 73 Articles of iron or steel 73 02 Railway track construction material of iron or steel 73 02 90 Railway track construction material of iron or steel, etc, nes Commodity Code Description 73 02 90 00 Railway track construction material of iron or steel, etc, nes 73 02 90 10 Sleepers (cross-ties) 73 02 90 90 Other
