Liu Zheng, the fourth-generation successor of Zuoqiu leaf carving, seperate mesophyll and leaf veins from a leaf at his workshop in Zhengzhou, central China's Henan Province, March 30, 2016. Leaf carving is originated in Zhou Dynasty (1046 B.C.-256 B.C.). It has been listed as one of the provincial intangible cultural heritages of Henan in September of 2005. (Photo: Xinhua/Feng Dapeng)
