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zuan shen kong kuai su tui xie zhuang zhi
Author(s): 
Pages: 36
Year: Issue:  2
Journal: Farm Machinery

Keyword:  深孔哈尔滨锅炉厂孔时铰孔飞刀资料整理;
Abstract: <正> 哈尔滨锅炉厂过去加工某零件钻深孔时,每钻一个需要工时3个多小时。工人师傅在很短的时间内试制成功如图所示的装置,提高效率4~5倍,大大减轻了工人的劳动强度,解决了钻深孔的问题。
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