Shanghai Qunsen Industry and Trade Co., Ltd，belongs to China Nanping Degussa Co., Ltd - Wellink Chemical Group, jointed by Germany-China, the largest manufacturer of chemical group for silicon dioxide (white carbon black); activated carbon; barium sulfate etc in China. Degussa - Wellink Chemical Group, joint by Fujian Nanping Wellink Chemical Industrial co., Ltd and Degussa Co., Ltd, the largest manufacturer of chemical group, mainly deal in precipitated silicon dioxide superfine powder, *d silicon dioxide superfine powder attaching activated carbon, barium sulfate, and Titanium Dioxide powder.
