Visitors view a model of artificial island oil and gas drilling rig displayed at the booth of China Aerospace Science and Industry Corporation (CASIC) at Hanover Fair 2019 in Hanover, Germany, April 2, 2019. 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)