Metal & Mining
| Tue 07 Apr 2026
Beijing, April 7 -- Shengli Oilfield North Ind Group Co Ltd has submitted a patent application for System for Predicting Depth of Stress Layer After Glass Tempering. Liu Xiaoya, Shi Xiufeng, Wei Xin, Zhou Wei, Ma Gang, Zhang Jiantang, Xue Ruitang, Zhou Huijuan, Cao Guangchao, Shao Jun, Li Jin, Liang Haisong and Zhang Shuai devel..