Over 80 foreign companies and organizations attend China's largest services trade exposition 2023 CIFTIS in Beijing Over 80 countries and international organizations attended the 2023 China International Fair for Trade in Services (CIFTIS) held in Beijing from September 2-6, Chinese press reported. 3.3w 09-11 17:02 READ MOST 我国授权纳米专利总数达46.4万件 居世界第一 8568 08-30 21:46 POPULAR TAGS 纳米 中科院 专利
