Wire-brush-bit rotary drilling jig and method for solving bit burying, falling and jamming
SUN LEI, SUN HUIGANG, WANG CHUN, YU ZHENBING, JI ZHONGDA, JIN HONGXIN
Year of Publication 02.12.2015
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Year of Publication 02.12.2015
Patent
Combined sleeve driving type steel structure girder fabricating table seat and prefabricated box girder combined sleeve driving method
YANG QINGBO, ZHAO PEISONG, SUN HUIGANG, ZHU XIAOJUN, WANG CHUN, YU ZHENBING, JI ZHONGDA, WANG QINGMING, YI XIANGYANG, ZHANG JUNLING, LI SHUNHONG, SUN LEI, GONG YIHAI, WANG XUE, SUN FUGANG
Year of Publication 27.05.2015
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Year of Publication 27.05.2015
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Widened bridge beam-plate mounting pushing device
ZHANG YANZENG, ZHU XIAOJUN, SUN HUIGANG, WANG CHUN, QIAO ZHENFENG, JI ZHONGDA, MA XINMENG, LIU XIN, LI SHUNHONG, SUN LEI, SHI SHAOYAN, LI XUECHAO, LIU TUANWEI, ZHU CHANGKUI, ZHU YONGFENG
Year of Publication 21.01.2015
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Year of Publication 21.01.2015
Patent