Security & Protection
| Mon 08 Jun 2026
Beijing, June 8 -- Shandong Zhonghao Holdings Group has submitted a patent application for Bending Device for Machining Protective Door and Machining Method. This invention was developed by Wang Zhaoyu, Wang Fang, Yu Chenyi, Zhang Chunhua, Zhao Yanfeng, Chen Liyong, Zhang Yi, Ma Runtian, Wei Guangsheng, Bai Hua, Liu Gang and Li ..