People work in the workshop of Jinke Drilling Machinery Co.,Ltd in the Xuanhua District of Zhangjiakou City, north China's Hebei Province, Jan. 15, 2017. These years, Xuanhua has seized the opportunity of the Beijing-Tianjin-Hebei integrated development and the preparation for 2022 Winter Olympic to develop high-end equipment manufacturing industry, including construction machinery, special purpose vehicle and new energy equipment. (Xinhua/Yang Shiyao)