WINDMILL BLADE
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United States of America Patent
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app pub date -
Sep 3, 2015
filing date -
Sep 3, 2015
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Abstract
Provided is a windmill blade, comprising a core material formed of an acrylic resin expanded article and an outer skin covering the core material, in winch the outer skin is formed of a fiber-reinforced resin material including a carbon fiber and a resin, and the acrylic resin expanded article has a specified bending modulus.
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