A worker checks the newly produced contact lenses in a factory of the CST Automation Technology CO., LTD, a non-public enterprise, in Baiyin City, northwest China's Gansu Province, Oct. 31, 2013. The non-public economy, which occupies 59.49 percent of the whole registered capital in Baiyin City, develops fast in recent years and has become an important motor for local economic development now. (Xinhua/Guo Gang)
