Workers work at a factory producing kids' bikes in Guangzong County, north China's Hebei Province, Aug. 15, 2018. As the local pillar industry, the making of kids' bikes in Guangzong started in 1970s. Local government has been encouraging enterprises to develop updated products and enter the global market. Now over 25 million kids' bikes of various kinds are produced in the county annually and exported to 30 countries and regions. (Xinhua/Zhu Xudong)