| http://www.w3.org/ns/prov#value | - The graphite in the baked pencil lead obtained is highlyoriented in the direction of an extrusion axis, and the baked pencil lead has well balanced strength, density and a writing performance.(2) Description of the Prior ArtConventional wood-cased pencil leads and mechanical pencil leads have been manufactured by adding a binder such as a clay, a natural polymer, a synthetic polymer, a pitch and a
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