prov:value
| - The carbon bearing material may comprise either carbon black, coke, graphite, pulverized coal, coal powder, ground rubber, a hydrocarbon with straight or branch chain containing up to 1000 carbon atoms, a cyclic or heterocyclic hydrocarbon compound, a carbohydrate including sugar, starch, corn syrup, molasses, fructose, sucrose, natural fibers including cellulose, a resin including phenol resin, f
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