Craftsman Wang Qijie covers the Qingsha pots in fire to cool them down at a workshop in Baihedong village of Yuxian county, North China's Hebei province, Jan 13, 2017. Qingshaqi, or green clay utensils, are traditional handicraft products with more than 300 years' history. The utensils are made of Gantu, a kind of local soil, and have been used for cooking and boiling. The making of the Qingshaqi has become a provincial intangible cultural heritage. [Photo/Xinhua]