Chemicals
| Sun 01 Nov 2026
Beijing, Oct. 31 -- Qinghai Yanhu Yuanpin Chemical has submitted a patent application for Vinyl Chloride Negative Pressure Recovery System and Method. This invention was developed by Chu Jiancheng, Lyu Feng, Ang Chin Cairang, Gou Qinglu, Luo Binbin, Liu Qiang, Wang Yanjun, Zhou Caixia, Xue Xingcai, Wang Yinghua, Yan Shangqian, H..