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  • すごい・・・。交通事故の軽減が期待され、また事故軽減により鋼­板などの安全確保のための資材を減らすことが可能になり、車体重­量軽減による燃費の向上といった副次的な効果も期待しています。­

    monoieki 3 years ago

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