Section 15 Base metals and articles of base metal 73 Articles of iron or steel 73 08 Iron/steel structures and parts thereof; plates, rods... therefor 73 08 90 Structures and parts of structures, nes, of iron or steel Commodity Code Description 73 08 90 00 Structures and parts of structures, nes, of iron or steel 73 08 90 20 Prefabricated modular type joined by shear connectors 73 08 90 40 Corrugated and curved galvanised plates or sheets prepared for use in conduits, culve 73 08 90 50 Rails for ships 73 08 90 60 Perforated cable trays 73 08 90 92 Guardrails 73 08 90 99 Other
