| http://www.w3.org/ns/prov#value | - a filler such as silica, carbon, glass fiber or carbon fiber, or an optional component such as a pigment, a plasticizer, an adhesion-imparting agent, a silane coupling agent, a titanate coupling gent, a flame retardant or a photostabilizer, may be incorporated in a range not to impair the respective performance.
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