... beautiful seaside city ,which engages in the manufacturing and marketing of Sodium sulfate , Cryolite , Soda ash , Edible alkali, Polyaluminium Chloride ... in the research of those chemicals.With the consistent quality ,reliable technical performance and competitive price,gains high praise by domestic ... as As) 3ppm MaxFluoride (as F) 0.005% Max Price of Trisodium Phosphate96%--High Quality Chemical