Explanatory notes
… (heading 72.07). Their cross‑section is uniform and when it is square or rectangular has sharp edges. (2) They have … oxidation, to prevent slipping during transport and to facilitate handling e.g., paints containing an active … (iron minium, jewellers’ rouge), and non‑pigmented coatings with a basis of oil, grease, wax, paraffin wax, graphite, …