Novel mine wellhead cart and turnover combined device von MU JUHAI, FU JINGUI, DU CHAO, QIAO SHICHAO, WANG YUXIAO

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Energy -conserving hydrodynamic force ventilation system von CHEN GUILIANG, XU YANHUI, WU CHUANFENG, SUN YONGGUO, DU SHAOFENG, MU JUHAI, SHU SHUNLONG, ZHU DESHENG, MAO JUNJIN, LIU ZHOUMEI

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Mine wind and water pipeline hook machining machine von CHEN GUILIANG, XU YANHUI, WU CHUANFENG, SUN YONGGUO, DU SHAOFENG, MU JUHAI, SHU SHUNLONG, ZHU DESHENG, MAO JUNJIN, LIU ZHOUMEI

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Auxiliary automatic downhole cage lifting connection device of single-rope-winding type lifting system von XU YANHUI, ZHAO SHIJIE, DU SHAOFENG, MU JUHAI, GUO LIANG, GAO LIANG, LI SHUJUN, MAO JUNJIN, LIU FENGJI

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Mine equipment liquid press wheel dismouting maintenance device von XU YANHUI, SUN YONGGUO, DU SHAOFENG, MU JUHAI, MAO DUNJIN, ZHANG GONG, LYU YUEJUN

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Disassembly and assembly maintenance device for hydraulic wheel shaft of mining equipment von XU YANHUI, SUN YONGGUO, DU SHAOFENG, MU JUHAI, ZHANG GONG, MAO JUNJIN, LYU YUEJUN

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Improved roller cage shoe von ZHANG HONGBO, XU YIJUN, MU JUHAI, FU JINGUI, DAI LIWEN, LIU ZHOUMEI

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Square solid pier reinforcing steel bar deviation rectifying device von WANG LEI, LIU SHIBO, FENG LI, ZHAO ZHIWEI, WEN JIANGWEI, MU JINGGUO, ZUO CHUNYUAN, SHEN YANXIAO, HU JUHAI, WU DI, SUN LONGHUA, LIU LIAN, LIU YONG

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Cast-in-place box girder side formwork supporting frame von WANG LEI, LIU SHIBO, WANG YIDONG, WEN JIANGWEI, MU JINGGUO, ZUO CHUNYUAN, LI XIAOXUE, HU JUHAI, JIA LIN, SUN LONGHUA, ZHANG WENLI, LIU LIAN, LI QINGJING, ZHANG CHAO, LIU YONG

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Cross-valley non-standard span cast-in-place beam support von WANG LEI, YUAN QIQI, MAO JINFENG, HOU SUQIN, MU JINGGUO, ZUO CHUNYUAN, GAO FEI, SHEN YANXIAO, HU JUHAI, SUN LONGHUA, NING KE, YANG ZIHE, WANG WENMING, DENG HUIQI, LIU YONG

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