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常见的齿轮材料20CrMnTi的最终热处理工艺应该是(  )

单选题
2022-04-01 17:12
A、调质
B、淬火+低温回火
C、渗碳
D、渗碳后淬火+低温回火
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正确答案
D

试题解析

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常见的齿轮材料20CrMnTi的最终热处理工艺应该是(  )
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