Explanatory notes
… are usually produced by hot‑rolling or forging blooms, billets, puddled bars or pilings; they are also sometimes … appearance than puddled bars (heading 72.06), blooms, billets, rounds, slabs and sheet bars (heading 72.07). Their … a basis of oil, grease, wax, paraffin wax, graphite, tar or bitumen. (3) Removal of small portions of the metal for …