Packaging & Containers
| Wed 17 Apr 2024
Beijing, April 18 -- Rizhao Steel Holding Group has obtained a patent for efficient pumping device for oil sludge at bottom of oil tank. This invention was developed by Li Bin, Wang Zhicheng, Ma Bing, Ding Peng, Ma Gang, Wu Lihao, Huang Xuyin, Dai Ruipeng, Zhang Xianyu, Li Yang, Chen Jianpeng, Huang He, Li Wentao, Chen Yan, Lu S..