January 16, 2020, RCI joined the protection of precious manuscripts and documents of the older generation of famous Chinese scientists, such as Qian Xuesen, Guo Yonghuai and An Jiguang, which was organized by a research and development center in China.

Manuscript of Qian Xuesen

Manuscript of Guo Yonghuai

Manuscript of An Jiguang

Our stuff conducting pH test on precious manuscrip

Our stuff conducting pH test on precious manuscript of Guo Yonghuai