... chilled cast iron roll 冷硬铸铁轧辊 ductile cast iron roll 可锻铁铸辊 plain cast iron roll 平面铸铁轧辊 ...
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... 可锻铸铁，玛钢 malleable cast iron 可锻铸铁辊 ductile cast iron roll 可锻铸铁件 malleable iron castings ...
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bainite ductile cast iron roll 贝氏体球铁轧辊
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