·Patents
Hong Yao, Liang Yue, Yiqing Du, Guangqian Luo, Minghou Xu. A throttle valve. National invention patent. Application number: CN201020630028.0
Release time:2019-09-11 Hits:
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Hong Yao, Guangqian Luo, Jun Han. A wet chemical recovery method for burning lead and zinc in solid products. National invention patent. Application number: CN201010182203.9
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Hong Yao, Minghou Xu, Dunxi Yu, Yu Qiao, Xiaowei Liu. A continuous and pulsed micro-feeding device. National invention patent. Application number: CN200610019052.9