Section 15 Base metals and articles of base metal 73 Articles of iron or steel 73 07 Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel. 73 07 11 Of non-malleable cast iron 73 07 11 00 Of non-malleable cast iron Commodity Code Description 73 07 11 00 000 Of non-malleable cast iron
