The 2021 China Hydraulic Hydraulic Pneumatic Seal Industry Technology Progress Award application review work started from January to September, the winners were announced, led by academicians of the Chinese Academy of Engineering 14 members of the China Hydraulic Pneumatic Seals Industry Association expert review committee mainly participated in the project review work. All the projects have gone through the stages of pre-evaluation, preliminary evaluation by the professional evaluation group, comprehensive evaluation by the evaluation committee, online publicity, and approval by the management committee. A total of 25 outstanding award winning projects have been selected. Among them: 3 first prize , 8 second prize , 14 third prize.

Beijing JJC Petroleum Equipment co., LTD., together with Chinese Academy of Sciences and engineering research institute of tsinghua university and production and some other company, joint innovation team completed "high-performance new materials and mechanical seal device key technology and application" project was awarded this year China hydraulic pneumatic seal industry technology progress award. Li Xuejun, chairman of JJC., received the honorary certificate.