| http://www.w3.org/ns/prov#value | - Among these materials, polyolefin such as ethylene-vinylacetate copolymer, fluoro-based resin such as polytetrafluoroethylene, ethylene-tetrafluoroethylene copolymer and the like, polyester-based elastomer, polyolefin-based elastomer, fluorine-based elastomer, and silicone rubber are particularly preferred because they have excellent chemical resistance.
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