As one of proffessional manufacturer POLY ALUMINIUM CHLORIDE in China, we can supply you: spray dry process PAC , and roller dry process PAC with white,milk white,light yellow colour powder.Our products list as follow:---a). POLY ALUMINIUM CHLORIDE 30%MIN-SPRAY DRY PROCESS: Item Al2O3 30.0%min Basicity 45-80 Water insolvent 0.1% max PH 3.5?5.0 N 0.01%max As 0.0001%max Cr6+ 0.0005%max Hg 0.00001%max Pb 0.0005%max Cd 0.0001%max Applicaiton:drinking water,city water,water reuse, urban sewage water treatment and other industrial wastewater.Capacity of 20FCL : load 20MT max.Package:25/20 kg PP bags.---b). POLY ALUMINIUM CHLORIDE 30%MIN-DRUM DRY PROCESS: Item Al2O3 30.0%min Basicity 60-85 Water insolvent 0.3% max PH 3.5?5.0 N 0.01%max As 0.0001%max Cr6+ 0.0005%max Hg 0.00001%max Pb 0.0005%max Cd 0.0001%max Applicaiton:drinking water,city water,water reuse, urban sewage water treatment and other industrial wastewater.Capacity of 20FCL : load 18MT max.Package:25/20 kg PP bags.