Hengli Chemical Factory Tanggu,Tianjin of is a company established in the past decade. We have good manufacturing and quality control facilities,plus a good technical staff to ensure quality products with competitive prices. Our services are clients oriented. We sincerely hope we all have a good future. Products Bromide: Sodium bromide, Potassium bromide, Ammonium bromide, Hydrobromic acid Building materials: Non-dispersible Underwater Concrete Admixture, Calcium LignosulfonateChlorobenzene series: Chlorobenzene, Paradichlorobenzene, o-Dichlorobenzene Welding material: Flame flux