A staff member presents a product model of NAVA company at the Poland booth during the first China International Import Expo (CIIE) in Shanghai, east China, Nov. 6, 2018. A total of 82 countries and three international organizations showcased their achievements in economic and trade development as well as competitive products at 71 booths in the Country Pavilion for Trade and Investment at the CIIE. (Xinhua/Yin Gang)