| http://www.w3.org/ns/prov#value | - The pitter bit 26 may be formed of a metallic material such as aluminum or steel, or they may be formed of a plastic such as polyethylene, polystyrene, polyvinyl chloride and polytetrafluoroethylene or any other material that is non-toxic, resists bacterial buildup and is resistant to shattering and wear.
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