On May 29, 2019, the chairman of the company, Ren Weimin, was invited by the World Vacuum Technology International Standardization Technical Committee to go to Kyoto, Japan to participate in the two-day World Vacuum Technology International Standardization Organization/Technical Committee meeting. At the meeting, the ISO/TC112 vacuum technology international standard was discussed and revised, and the chairman of the company Ren Weimin participated in the discussion of this international standard.