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 金属加工业 润滑解决方案
金属加工业润滑

行业润滑解决方案
金属加工指人类对由金属元素或以金属元素为主构成的具有金属特性的材料进行加工的生产活动。人类社会的进步与金属材料的加工与运用关系十分密切,在六千多年前冶炼出黄铜,在四千多年前能够制造简单的青铜工具,在三千多年前开?#21152;?#38504;铁制造兵器,中国在二千五百多年前的春秋时期已会冶炼生铁,比?#20998;?#35201;早一千八百多年以上。...
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