The product is reddish brown powder ,with the complexation of polymerized ferrum on the basis of polymerized aluminium chloride,it has increased the molecular structure and improved the performance of electrical neutralization ,absorbtion,bridging and sedimentation with the advantages os aluminium salt,ferric salt and flocculating agent.It is suitable for raw water in all temperatures and can be used as the favorable agent in treating raw water with serious organic pollution,raw water of low turbidity in low temperature or that of high turbidity in low temperature.It is widely applied in the treatment of domestic drinking water,all kinds of industrial water and waste water.