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石墨模型的复原作用

发布时间:2019-05-14 13:56:50 浏览:199次

为什么要用石墨作为模具的原料呢?大家都晓得,石墨具有十分多的优势,而其中有一种,就是复原作用。置信大家都晓得,模具要是运用久了就磨损严重,变形严重,岂不是会增加本钱。

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石墨模型的复原作用

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