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| 海图夫低合金高强度钢 (0.25C, 1.3Mn, 1.5Si, 1.8Ni, 0.4Mo, 余量 Fe) | |||
| 海图夫低合金高强度钢; 海一塔夫钢一种高强度耐冲击低合金钢 | |||
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| 高强度低合金钢 | |||
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