Petrochemicals
| Sat 29 Aug 2026
Beijing, Aug. 29 -- Jilin Hengdong Tech Co Ltd has sought patent for Optical Fiber Sensor, Spectral Analysis System and Spectral Analysis Method for Detecting Quality of Lubricating Oil. This invention was developed by Guo Lijun, Yi Qing, Li Guoliang, Du Xin, Liu Jingchun, Li Zhengran, Ding Caiyi, Yin Dapeng and Wang Bo.
The ..