Code 7307 11

TUBE OR PIPE FITTINGS, CAST, OF NON-MALLEABLE CAST IRON

SECTION XV. Base metals and articles of base metal

73 ARTICLES OF IRON OR STEEL

7307 tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel:

cast fittings:

7307 11 of non-malleable cast iron:

7307 11 100 0 used in pressure systems

7307 11 900 0 other