| http://www.w3.org/ns/prov#value | - For example, rubber thread is prepared by compounding natural rubber or synthetic rubber such as polyisoprene with various additives (e.g., antioxidants, vulcanization accelerators and sulfur) to form a rubber composition, which is molded and vulcanized. [0072] The golf balls using the various types of cores described above and falling within the scope of the invention can be produced by forming t
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