Photo taken on April 1, 2019 shows a robotic arm displayed at the booth of Chinese tech company Huawei at Hanover Fair 2019 in Hanover, Germany. Over 1,400 Chinese exhibitors attended the fair, the second most just after the host country Germany. Huawei, Haier and other Chinese manufacturers showed their most advanced networking and artificial intelligence technologies to the world. (Xinhua/Shan Yuqi)