Chen Yejia, 73, a member of the Beijing Kite Association and a senior national referee for kite flying games, assembles a miniature kite at the 2020 China International Fair for Trade in Services (CIFTIS) in Beijing yesterday. Most the kites exhibited by the Beijing Kite Association at the CIFTIS are made by Chen, who has devoted himself to kite-making since 1980. Xinhua