Zhang Xiaocheng checks a model of ancient building made of discarded wooden sticks in Chengguan Town of Wu'an City, north China's Hebei Province, July 31, 2018. 70-year-old Zhang has made over 60 handicrafts using discarded wooden sticks. (Xinhua/Wang Xiao)

Zhang Xiaocheng checks a model of ancient building made of discarded wooden sticks in Chengguan Town of Wu'an City, north China's Hebei Province, July 31, 2018. 70-year-old Zhang has made over 60 handicrafts using discarded wooden sticks. (Xinhua/Wang Xiao)

Zhang Xiaocheng makes a model using discarded wooden sticks in Chengguan Town of Wu'an City, north China's Hebei Province, July 31, 2018. 70-year-old Zhang has made over 60 handicrafts using discarded wooden sticks. (Xinhua/Wang Xiao)

Zhang Xiaocheng checks a model of ancient building made of discarded wooden sticks in Chengguan Town of Wu'an City, north China's Hebei Province, July 31, 2018. 70-year-old Zhang has made over 60 handicrafts using discarded wooden sticks. (Xinhua/Wang Xiao)