Security & Protection
| Sat 22 Aug 2026
Beijing, Aug. 22 -- Zhejiang Wanna Nuclear Power Maintenance Co Ltd has secured a patent on Adjusting Device for Adjusting Bolt of Main Steam Safety Valve. Zhang Boqun, Yang Jian, Wang Xiaofeng, He Yehui, Yang Jiahao, Zhao Yuan, Chen Yuan, Wang Jiaxiang and Lu Shaohua developed the invention.
The patent application number is ..