楼主: freak
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国内哪些大型厂家剃齿渗碳淬火热处理后能达到7级精度,可详谈 |
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发表于 2012-6-18 13:16
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发表于 2012-6-18 17:42
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发表于 2012-6-20 18:11
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发表于 2012-6-21 17:17
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