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jul 1, 1926 - 1926年，添加炭黑提高了轮胎的耐磨性和抗老化性，也使轮胎成为特征鲜明的黑色。

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日本电装/博世/大陆

5 May 2022

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jul 1, 1926

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~ 99 years ago

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