Aviation
| Thu 28 May 2026
Beijing, May 29 -- China Hangfa Guizhou Liyang Aviation Power has filed a patent application for High-precision Interference Type Radial Elliptical Hole Milling Method and Clamp. This invention was developed by Zhang Dechun, Zhang Baojian, Fu Yong, Lei Lin, Zeng Li, Du Keyang, Zhao Tianyi, Zhang Yazhou, Wang Hongpeng, Jiang Xiao..