prov:value
| - As illustrations of such other materials in rubber mix, mention may be made of fillers such as carbon black, zinc oxide, clays, chalk, whitings, calcium silicate, barium sulfate and the like in order to reduce the cost, increase the specific gravity, or raise the viscosity; plasticizers and softeners such as mineral oil, lanolin, etc; antioxidants, e.g. aromatic amine antioxidants, substituted phe
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