The 19th China Hi-Tech Fair (CHTF) concluded in Shenzhen of south China's Guangdong Province. Over the six-day event, more than 10,000 high-tech projects were put on display by over 3,000 exhibitors from China and abroad. About 600,000 visitors came to this fair. Around the various exhibition zones and stands, cutting-edge technologies in fields like artificial intelligence, robotics and 5G mobile networks attracted the most attention.