Photo taken on Jan. 2, 2018 shows masks of Nuo Opera made by Peng Guolong in Xiangdong District of Pingxiang, east China's Jiangxi Province, Dec. 28, 2017. Mask is an important element of Nuo Opera, which was listed as one of the national intangible cultural heritages. Chen Quanfu and Peng Guolong are the inheritors of Xiangdong Mask of Nuo Opera. The craft calls for a great deal of times as well as mastery. Chen can carve 400 types of masks and Peng creats many new models on the basis of traditional skill. (Xinhua/Peng Zhaozhi)