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[求助] 资料名称叫“北美压铸协会-压铸缺陷产生原因及解决方案”, | 
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 一入模具深似海,从此妹纸成路人 
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 没有失败,只有暂时停止成功,过去不等于未来! 
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 诚信是根本 
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 诚信是根本 
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 永不止步,不进则退 
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