A GREE robot plays piano during the 2019 China International Industry Fair in Shanghai, Sept. 18, 2019. The fair runs from Sept. 17 to 21 with over 2,600 exhibitors from 27 countries and regions. (Photo: China News Service/Tang Yanjun)
A robot interacts with a visitor during the 2019 China International Industry Fair in Shanghai, Sept. 18, 2019. The fair runs from Sept. 17 to 21 with over 2,600 exhibitors from 27 countries and regions. (Photo: China News Service/Tang Yanjun)
A robot interacts with a visitor during the 2019 China International Industry Fair in Shanghai, Sept. 18, 2019. The fair runs from Sept. 17 to 21 with over 2,600 exhibitors from 27 countries and regions. (Photo: China News Service/Tang Yanjun)
A robot on display during the 2019 China International Industry Fair in Shanghai, Sept. 18, 2019. The fair runs from Sept. 17 to 21 with over 2,600 exhibitors from 27 countries and regions. (Photo: China News Service/Tang Yanjun)
Visitors look at a display that weighs 750 kilograms during the 2019 China International Industry Fair in Shanghai, Sept. 18, 2019. The fair runs from Sept. 17 to 21 with over 2,600 exhibitors from 27 countries and regions. (Photo: China News Service/Tang Yanjun)
A hydrogen cell vehicle on display during the 2019 China International Industry Fair in Shanghai, Sept. 18, 2019. The fair runs from Sept. 17 to 21 with over 2,600 exhibitors from 27 countries and regions. (Photo: China News Service/Tang Yanjun)
