... seaside city ,which engages in the manufacturing and marketing of Sodium sulfate , Cryolite , Soda ash , Edible alkali, ... Polyaluminium Chloride, Polyacrylamide, Polyaluminium Ferric Chloride ,Polymerization iron sulfate , potassium sulfateand Sodium Tripolyphosphate . And our products mainly ... more than 50,000 aquare meters ,with an annual production capacity of flocculants up to 20,000 tons,We ...