Aerospace
| Tue 02 Jun 2026
Beijing, June 2 -- China Helicopter Research & Development Institute has submitted a patent application for Variable-angle Tensile Load Test Method for Composite Sandwich Structure. Zhang Jian, Ma Fengfei, Zhu Jinrong, Zhu Yichao, Zhu Shuai, Wu Jianguo, Hu Jianqing, Chen Qingtong, Yuan Chunming, Liu Yunhao, Zhu Linhao and Jiang ..