Explanatory notes
… (f) Precious or semi‑precious stones (natural, synthetic or reconstructed) of headings 71.02 to … interchangeable tools are to be classified according to the constituent material of their working part (for example, in … conveyor belts or belting) ( heading 40.10 ), rubber tyres, tubes, etc. ( headings 40.11 to 40.13 ) and washers, etc. ( …Legal note
… (f) Precious or semi‑precious stones (natural, synthetic or reconstructed) of headings 71.02 to … interchangeable tools are to be classified according to the constituent material of their working part (for example, in … “machine” means any machine, machinery, plant, equipment, apparatus or appliance cited in the headings of Chapter 84 …Classification opinions
… for use solely or principally with a particular machine, or apparatus of Sect. XVI. Classification as parts or accessories of the appropriate machine or apparatus. See also Opinions 8487.90/2, Sect. XVII/1 and …