Bridged valve block assembly von QIU YONGNING, GAN YANYIN, TANG CHENGJIAN, YE JING

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Plate drilling auxiliary device von WANG KUN, XIAN ZHENPENG, LIU JINCAI, QIN ZHENYU, ZHANG ZHONGQIU, KONG DEBIN, ZHANG DAODONG, XU WEIWEI, GAN YANYIN, CHEN YU, HE ZHILEI, KONG LINGTAO, TAN YINGMIN, LI LEI

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Sealing edge and ear band welding mechanism for mask machine von XU BAOWEI, GAN YANYIN, MA XIQUN, WANG PENG, ZHANG JIAN, KANG BIN, ZHANG CHENGLONG, WANG DAN, CHANG WENLING, CUI CHAO

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Child transfusion counter von WU QIANZHEN, GAN HAIQIONG, XIE YANYIN, ZHOU DAOYU, BIAN ZHIWEI

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