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jan 1, 1200 BC - 中国商代已能使用锡、铅及汞的某些化合物，并出现镀锡铜器。

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公元前1200年中国商代已能使用锡、铅及汞的某些化合物，并出现镀锡铜器。

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2 May 2023

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jan 1, 1200 BC

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~ 3228 years ago

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