Textile
| Tue 06 Oct 2026
Beijing, Oct. 5 -- China Nat Machinery General Institute Group Qingdao Branch Co Ltd has received a patent for Direct-writing Type Continuous Fiber Prepreg Yarn 3D Printing Spray Head Device. This invention was developed by Li Jiuzhen, Yuan Yongchao, Mao Jizhe, Ding Guijun, Shi Baozhou, Wang Shihua, Liu Shanliang, Jiang Peng, Xu..