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[求助] 合金模具不耐回火,硬度掉的快 |
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发表于 2010-6-4 22:27:40
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发表于 2010-6-5 13:22:28
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发表于 2010-6-8 08:57:55
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发表于 2010-6-8 09:05:48
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发表于 2010-6-8 12:53:51
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发表于 2010-6-8 14:00:00
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