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齿轮检测报告,大家看下有什么问题 |
发表于 2012-8-21 22:25
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拜托,是JIS等级,和国标相差大呢
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发表于 2012-8-21 22:46
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发表于 2012-8-22 00:22
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发表于 2012-8-22 09:23
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