The China Hi-tech Fair 2017 featuring hi-tech Chinese products and technology has ended in Shenzhen in south China's Guangdong Province.
The fair covered a total area of 120,000 square meters, with 12 exhibition zones displaying hi-tech products in environmental protection, biological sciences, new energy, new materials, military and civil integration, and sensor technology.
More than 3,000 exhibitors showed latest achievements in science and technology