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常识“灰口铁”是什么意思,起源、典故、生平简介及释义-历史文化

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词汇 灰口铁
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释义 灰口铁生铁品种之一。始见于西汉,山东滕州皇殿岗战国西汉冶铸遗址出土的铁块、河北满城汉墓出土的轴承,都是灰口铁制品。其中的碳大部或全部以条块状自由石墨态存在,故其硬脆性较白口铁、麻口铁低,且具有良好的耐磨和润滑性能。
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