Auxiliary righting device von JIN XIANTAO, RAO YUHONG, LI CHAO, TAN ZHU, WENG SHUANGHONG, LI MINGHAI, ZHANG HAO, ZHANG YONG, LIU BAOBAO, MU PENGZHANG

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Deck cleaning agent gunwale frame von JIN XIANTAO, LI CHAO, TAN ZHU, LIU XIAOFEI, WANG BEN, TAN YONGHONG, HAO QINGXI, ZHANG HAO, ZHANG YONG, GUO XIAOCHUN, MU PENGZHANG

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Oil field chemical agent filling device with cleaning structure von WANG GUANGCAN, JIN XIANTAO, RAO YUHONG, LI MINGHAI, TIAN FENGHUA, ZHANG YONG, CEN YONGZHAN, CHEN CHANG, MU PENGZHANG, WANG YAN

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Mounting and overhauling tool for mechanical seal of single-screw pump von HAO QINGXI, CHANG DEYU, FENG ZHUZHENG, XU DI, ZHANG YONG, WANG MENG, CHEN CHANG, HU XUDONG, MU PENGZHANG, LI CHAO, HE DA, NIE XIAODAN, LIANG JINGANG, WANG CHAO, YANG KAIJIAN, GUO JIHUA

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Mounting bracket convenient for offshore oil automation instrument von MO YAOXING, WENG SHUANGHONG, ZHENG JIANGUI, ZHANG YONG, CHEN CHANG, HU XUDONG, DENG XIAONING, MU PENGZHANG, ZHANG PEIPEI, WANG GUANGCAN, LI CHAO, HE DA, LI WUCHUAN, YANG KAIJIAN

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Flange opening device von WENG SHUANGHONG, FENG ZHUZHENG, ZHANG HAO, ZHANG YONG, ZHU JIKONG, CHEN CHANG, MU PENGZHANG, CHEN KEYING, PAN YONG, WANG GUANGCAN, RAO YUHONG, LI CHAO, HE DA, WEI YANG, LI HANG, YANG JIN, CEN YONGZHAN, YANG KAIJIAN, WANG YAN

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Differential pressure type spherical pig ball passing indicating device von RONG YAN, YANG JIANYE, WANG XINZHU, LIU JUN, GUO XIANG, SU LEI, LI MINGHAI, LIU SHUAI, HUANG QIYU, SHAO WEIMIN, ZHANG YANZHONG, MU PENGZHANG

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