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S45C是水淬鋼, 油淬得M的比例太低了.
Colorful, isn't it? Mixture of F+P+M. Can you tell which is which?
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S45C是水淬鋼, 油淬得M的比例太低了.
Colorful, isn't it? Mixture of F+P+M. Can you tell which is which?