A delivery robot is seen at Hannover Messe in Hanover, Germany, May 30, 2022. About 2500 companies participated in the industrial trade fair, which concluded on June 2 in Hanover. (Xinhua/Ren Pengfei)
Visitors view a model of "City in the Future" at Hannover Messe in Hanover, Germany, June 1, 2022. About 2500 companies participated in the industrial trade fair, which concluded on June 2 in Hanover. (Xinhua/Ren Pengfei)
Children experience operating a simulating aircraft at Hannover Messe in Hanover, Germany, May 30, 2022. About 2500 companies participated in the industrial trade fair, which concluded on June 2 in Hanover. (Xinhua/Ren Pengfei)
Photo taken on May 30, 2022 shows bicycles made of recycled materials at Hannover Messe in Hanover, Germany. About 2500 companies participated in the industrial trade fair, which concluded on June 2 in Hanover. (Xinhua/Ren Pengfei)
Mechanical arms are seen at Hannover Messe in Hanover, Germany, May 31, 2022. About 2500 companies participated in the industrial trade fair, which concluded on June 2 in Hanover. (Xinhua/Ren Pengfei)
