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精密小模数塑料齿轮注射模具型腔尺寸计算及成型工艺 |
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发表于 2007-5-28 15:57
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好东西
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发表于 2007-6-5 14:25
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很好的资料
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发表于 2007-6-14 19:23
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发表于 2007-6-19 22:28
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发表于 2007-7-23 10:28
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