Shangyu ChenHao Chemical Co., Ltd. is a trade production-oriented enterprises who relying on Zhejiang Hongda Chemical Co., Ltd. The company has accumulated more than 10 years'experience ,specializing in the production of printing auxiliaries and the pigment coloration;.Hongda has a professional and energized team,25% of them are well-educated experts.Equipped by advanced instruments such as IR dying machine,GC,HPLC,UV spectrophotometer.And the company's fluorescent brighteners series, finishing functional products in the printing and dyeing industry enjoyed a good reputation. It is also in the paint, organic pigment,water treatment agent, Titanium dioxide, and other fields have a good visibility.