Section 15 Base metals and articles of base metal 74 Copper and articles thereof 74 15 Nails... wholly or partly of copper; copper screws 74 15 21 Washers (incl. spring washers) 74 15 21 00 Washers (incl. spring washers) Commodity Code Description 74 15 21 00 000 Washers (incl. spring washers)
