3898| 16
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請(qǐng)問一下在制圖中滲氮怎樣表示 |
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點(diǎn)評(píng)
說白了就是一種表面處理熱處理,只提要求就成了,類似我們這種,只提滲氮層厚度就成了,太薄沒硬度層,太厚會(huì)脆。
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