Activated Carbon, Polyaluminium Chloride, Polyacrylamide manufacturer / supplier in China, offering Water Crystal Antiscale Sodium Polyphosphate Water Antiscalant 20mm Siliphos Balls, Food Grade Antiscale Transparent Glassy Sodium Siliphos Polyphosphate Crystal RO Antiscale Balls Granular, Transparent Glassy Antiscalant Corrosion Siliphos Ball Silicon Phosphorus Crystal and so on.