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[求助] 20Cr2Ni4齿轮,缓冷渗层合格,淬火后层深变深 |
发表于 2011-3-31 16:22:58
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发表于 2011-3-31 16:38:27
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发表于 2011-3-31 16:47:55
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发表于 2011-3-31 17:00:54
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发表于 2011-3-31 18:42:19
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