Name: 发动机曲轴这样清洗有什么用呢？
Uploaded: 2020-09-08T12:21:16.000Z
Duration: 1 min 23 s
Description: 发动机曲轴这样清洗有什么用呢？

哇瓜

这个步工艺 叫：喷砂，去除表面应力，改善粗糙度

发动机曲轴这样清洗有什么用呢？

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发动机曲轴这样清洗有什么用呢？

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