… or similarly closed), having circular cross-sections, the external diameter of which exceeds 406.4 mm, of iron or …
Explanatory notes
… or similarly closed), having circular cross-sections, the external diameter of which exceeds 406.4 mm, of iron or … of metal, the “weld bead”, which is clearly visible on the external surface of the finished tube. Subheading 7305.12 … After welding there is no raised bead of metal on the external surface of the finished tube. …