A visitor views clay figurines displayed at an exhibition of the works of Zhang Chang, the forth-generation descendant of Tianjin-based clay sculpture art Clay Figure Zhang, in Hangzhou, capital of east China's Zhejiang Province, May 15, 2017. Over 120 pieces of clays sculpture art works were displayed on the exhibition. (Xinhua/Li Zhong)

A visitor views clay sculpture works displayed at an exhibition of the works of Zhang Chang, the forth-generation descendant of Tianjin-based clay sculpture art Clay Figure Zhang, in Hangzhou, capital of east China's Zhejiang Province, May 15, 2017. Over 120 pieces of clays sculpture art works were displayed on the exhibition. (Xinhua/Li Zhong)

A visitor views clay figurines displayed at an exhibition of the works of Zhang Chang, the forth-generation descendant of Tianjin-based clay sculpture art Clay Figure Zhang, in Hangzhou, capital of east China's Zhejiang Province, May 15, 2017. Over 120 pieces of clays sculpture art works were displayed on the exhibition. (Xinhua/Li Zhong)

Visitors view clay figurines displayed at an exhibition of the works of Zhang Chang, the forth-generation descendant of Tianjin-based clay sculpture art Clay Figure Zhang, in Hangzhou, capital of east China's Zhejiang Province, May 15, 2017. Over 120 pieces of clays sculpture art works were displayed on the exhibition. (Xinhua/Li Zhong)