| http://www.w3.org/ns/prov#value | - Illustrative of such additives are other materials such as titanium dioxide, silicon dioxide, zinc oxide, calcium carbonate, clays, calcium silicate, zinc sulfide, hydrous alumina and calcined magnesia; thermoplastic resins such as polyvinyl chloride and epoxy resins as compounding substances; vulcanizing agents; vulcanization accelerators; accelerator activators, sulfur curatives; antioxidants; d
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