Section 15 Base metals and articles of base metal 73 Articles of iron or steel 73 17 Nails, tacks, drawing pins, corrugated nails... of iron or steel 73 17 00 Dog spikes for rail sleepers; gang nails 73 17 00 30 Dog spikes for rail sleepers; gang nails Commodity Code Description 73 17 00 30 00 Dog spikes for rail sleepers; gang nails