A worker in a factory in the economic zone of Qinhuangdao, Hebei Province, in this file photo. Thanks to it adjacency to Beijing and Tianjin, Qianhuangdao expects to see its economy to take off by introducing high-tech projects. The city plans to invest 19.1 billion yuan (US$3.19 billion) this year on 74 projects, which are all under construction, and has completed investment of 2.3 billion yuan in the first four months, the city government said.Xinhua