The man who installs 'eyes' for missiles

By Dong Ning and Li Jingrong
0 Comment(s)Print E-mail China.org.cn, June 29, 2017

Jia Yan concentrates on his work. How to drill round holes smoothly in such soft materials as sponge and foam was a problem. Now, Jia Yan has solved the problem by improving the shape of the tools. [Photo by Dong Ning/China.org.cn]


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