Explanatory notes
… Of machinery of heading 84.26, 84.29 or 84.30 : 8431.41 ‑ ‑ Buckets , shovels, grabs and grips 8431.42 ‑ ‑ Bulldozer or … on vehicles of Chapter 87. (4) Rotary tables, swivels, kellies, kelly drive bushings, tool‑joints, drill collars, subs, …