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[刀具设计] 不同的螺旋角齿轮,刀具有何不同之处(对于要求较高的汽车齿轮而言) |
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发表于 2010-4-25 20:39
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发表于 2010-4-25 21:29
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发表于 2010-4-27 10:24
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