... .Basicity: 40% ~ 90% 2.Al2O3: 30% 3.Free samples 4.flocculant coagulant Brief introduction ... , compared to the cost of water and low 15-30%.B, sedimentation of flocs formed quickly, fast, processing ... and shall not be mixed with other chemicals to save.4, ML and diluent slightly corrosive, but lower than ... water standards Factory price of Polyaluminium chloride 30% for industrial wastewater treatment