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| Mayari R (V 0.12C,0.2~1Cr,0.25~0.75Ni, 0.5〜 0.7Cu,0.5~1Mn) | |||
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迈亚里R 钢 : 3 phrases in 2 subjects |
| Metallurgy | 2 |
| Technology | 1 |
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