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Qinghua He

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Publication

Featured researches published by Qinghua He.

Archive | 2010

Crawler-type pile frame and method for mounting same

Baoyan Shan; Wenqiang Ding; Qinghua He; Huanyun Qian; Hao Xiong; Mingqiang Xiong; Su Zeng; Jianxin Zhu

Archive | 2012

Retractable type belt chassis and engineering machine provided with same

Huanyun Qian; Qinghua He; Jianxin Zhu

Archive | 2011

A combined down-hole hammer

Huanyun Qian; Qinghua He; Jianxin Zhu; Chao Deng; Peng Zhang; Haijian Li

Archive | 2011

Rotation-revolution combined down-hole hammer and construction method thereof

Qinghua He; Huanyun Qian; Jianxin Zhu

Archive | 2009

Single speed reducer single motor rotary digging drill power head apparatus

Qinghua He; Jianxin Zhu; Yue Wu; Zhixiu Fan

Archive | 2011

Rotation-revolution combined down-hole hammer

Qinghua He; Huanyun Qian; Jianxin Zhu

Archive | 2014

Telescopic Crawler Chassis and Engineering Machinery Having the Same

Huanyun Qian; Qinghua He; Jianxin Zhu

Archive | 2009

Rotary digging drill power head device with high speed earth throwing function

Qinghua He; Jianxin Zhu; Yue Wu; Zhixiu Fan

Archive | 2009

Rotary digging drill power head apparatus with high speed soil-throwing function

Qinghua He; Jianxin Zhu; Yue Wu; Zhixiu Fan

Archive | 2009

Mobile arm amplitude mechanism for rotary drill rig

Qinghua He; Jianxin Zhu; Hao Hu; Yue Wu; Zhixiu Fan

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Collaboration

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