Tianjin Hongwei Chemical Co., Ltd , located in Tianjin, China, is a dedicated manufactory in dyes intermediates. Our annual output:Tobias Acid 3000tons, , Sulfonic Tobias Acid3000tons, m-Amino-Benzene...

...

We take pride in being a top choice among interior designers, owing to the world’s finest Bon Acid based on quality aesthetic appeal, prevailing in the market. Our product line is specifically designe...

youyi south Tianjin 300221 China

...