Zibo Dazhong Edible Chemical Co.,Ltd,found in 2004,has been specialized in the production of water treatment chemicals for 20 year.The product includes: aluminium sulfate,aluminium ammonium sulfate,aluminium potassium sulfate,poly aluminium chloride,calcium hydroxide.At present,we produce non ferric aluminium sulfate 200 tons/day,low ferric aluminium sulfate 150 tons/day, top 2 aluminium sulfate manufacturer in China.In the past 20 years,we have been exporting aluminum sulfate to many countries in South&East China,Africa,Middle&South America.