… semi-coke of coal, of lignite or of peat, whether or not agglomerated; retort carbon. …
Explanatory notes
… semi‑coke of coal, of lignite or of peat, whether or not agglomerated; retort carbon. Coke is the solid residue … is a hard, black, brittle form of carbon which gives a metallic ring when struck. It is obtained as a by‑product in … or slightly curved according to the shape of the retort. In some countries, retort carbon is called “artificial …