Manufacturing method of wrist sphygmomanometer protection diaphragm
LIU YOUQIONG, WANG XIHONG, GUO LIPING, YANG HAO, XIA DAN, HE FENGHUA, LUO WANYING, HUANG YUNXIU, LI TING
Year of Publication 13.10.2020
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Year of Publication 13.10.2020
Patent
Recovery method of valuable metal of waste circuit board
LIU HUANYU, ZHANG YUJIE, WANG SHOURONG, XU KAIHUA, ZHU JUN, HE FENGHUA, HUANG DONGBO, ZHANG KAN
Year of Publication 08.10.2019
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Year of Publication 08.10.2019
Patent
Retractable averruncator
YU HUICHEN, ZHU HAIRONG, YAN QIUXIA, HE FENGHUA, LU WENLEI, ZHANG HAIYAN, XU FENG, ZHOU GUOFENG, XI ZHIHONG, HU WEI, DU XIAOYI, SHEN SHAOHUA, REN BANGTAO
Year of Publication 19.08.2015
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Year of Publication 19.08.2015
Patent
Method for recycling valuable metals of waste circuit boards
LIU HUANYU, WANG SHOURONG, XU KAIHUA, HE FENGHUA, JIAO HUA, HUANG DONGBO, ZHANG KAN, ZHONG SHOUJIE, LIAO YONGHU
Year of Publication 08.10.2019
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Year of Publication 08.10.2019
Patent
Dewatering liquid of curing water for workover fluid and dewatering method thereof
LIU DEZHENG, PAN YANPING, HE FENGHUA, ZHANG JIANHUA, ZHANG WEIHUI, YAO ZHANHUA
Year of Publication 17.10.2017
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Year of Publication 17.10.2017
Patent
Mine ventilation increases wind device
GAO LEI, LI LIN, HE FENGHUA, WANG YANJUN, WANG ZHONGLIANG, ZUO HONGBING, YU FEI
Year of Publication 07.09.2018
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Year of Publication 07.09.2018
Patent
Grouting treatment method for strip mining goaf
GUO BAODE, HUA XIANG, HE FENGHUA, WANG XIAOYONG, ZHANG YONG, ZHAO QI, YU FEI, ZHANG RONGYING
Year of Publication 08.01.2019
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Year of Publication 08.01.2019
Patent
Roller of coal mining machine
ZENG FANBIAO, ZHANG LEI, LI LIN, HE FENGHUA, LI KEWEI, WANG ZHENGCHAO, LI YIHU
Year of Publication 09.10.2018
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Year of Publication 09.10.2018
Patent