… preparations based on graphite or other carbon in the form of pastes, blocks, plates or other semi-manufactures. …
Explanatory notes
… preparations based on graphite or other carbon in the form of pastes, blocks, plates or other semi‑manufactures. … furnace by heating a mixture of finely ground coke (normally petroleum coke, but sometimes anthracite coke, … examination shows to be that of graphite. Chemical analysis confirms that the substance is graphite (precipitation of …