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一种方便操作的螺纹连接装置、连接结构及其预紧方法

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Affilication of Author(s):机械工程学院

Patent Applicant:zhangjinsheng

Type of Patent:发明

Application Number:201811287724.3

Number of Inventors:1

Service Invention or Not:no

Application Date:2018-10-31

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