Openable glass breast board used at position of glass curtain wall fire rescue window von LI GUANGDA, TAN ZHUANGJU, LI JUN, ZHOU MINGYUAN, GUO LIANG, MENG XIANGYU, GAO YUANSHI, JIA XUEMIN, ZHANG GUANGLEI, DU JINZE

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Height-adjustable working frame in elevator shaft von LI GUANGDA, WU XIAOCAI, LI LE, CHENG XUECHUN, TAN ZHUANGJU, LI JUN, GUO LIANG, GAO YUANSHI, JIA XUEMIN, YIN FANGMAO

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JDG line pipe pressing pliers von ZHANG ZAN, ZHANG QI, SHANG ZHI, TAN CHANGJUN, WU ZHUANGJU, WANG YONGCHAO

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Quick connection tool and tapping tool von LI ZIEN, GU JIACHENG, MA ZHUANGJU, LI ZHONGGUO, OUYANG XIAOTIAN, MAI JUNWEI, TAN JIASHENG

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Foam scrubbing foaming agent for shale gas development von YANG CHANGHUA, HUANG MINGQUAN, LI XIAOYI, WANG QI, HUANG HAO, XU ZHUANGJU, LUO HAN, AN YIHONG, CAI JUNCHI, ZHANG SHUANG, QIU JIANLING, TAN CONG, YANG BOWEN, ZUO PEI, HE BIYUN, DU JIACHENG, WANG BAIHAN, CHEN XIAOYU, ZENG JINGKE

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