From July 21 to 22 and August 21 to 22, 2021, Zhang Ke, General Manager of Jingqing Heavy Machine, together with Wu Wenjian, Chairman of Huanmo Technology Holding (Group) Co., LTD., Duan Qifu, Technical Director, Zhou Lusheng, Deputy General manager, Zhao Yan and others, visited Sinosteel Maanshan Mining Research Institute Co., LTD. The characteristics and application of dry grinding technology were reported to Academician Wang Yunmin and other leaders, the content and mode of cooperation on the joint development and application of the technology were discussed, and the improvement and upgrading of the technology were deeply and systematically exchanged.

Zhang Ke, general manager of Jingqing Heavy Machine, comprehensively introduced the characteristics and cases of dry grinding technology to the leaders and experts such as Xu Chuanhua, chairman of Maanshan Institute, which was dominated by Academician Wang, and won their affirmation and recognition, that the technological innovation is outstanding, significant, and the application prospect is broad, especially in today's monopoly of imported iron ore. The application and popularization of this technology is of great practical significance. The two sides discussed how to further cooperate, indicating that they will work together to improve and upgrade this technology in line with the principle of giving play to advantages and win-win cooperation, so that it can play an early role in improving the current situation of iron ore resources subject to import restrictions.