Packaging & Containers
| Thu 14 May 2026
Beijing, May 14 -- Dongguan Power Bureau Guangdong Power Grid has submitted a patent application for Opening and Closing Control Box with Fault Self-checking, Warning and Uploading Functions. He Daowei, Chen Weijie, Ma Zhongwen, Huang Weiheng, Yuan Jianfeng, Liu Gang, Zhang Nanyan, Li Zhiyong, Mo Huishen and Zhang Haiqin develop..