1.(AL2O3)content >28%. 2.Basicity%:40-90 3.Water insoluble matter ... composition of inorganic polymers, mainly composed of AL13O4 (OH) 24 (H2O) 127 + highly charged polymer chain polymerization of ... variety of uses. 1, purified drinking water, sewage; 2, industrial water purification, industrial wastewater, mining, oil field ... 5-4Water insoluble≤1.01.0 HDLL with SGS certification for water treatment PAC