... ; 2, industrial water purification, industrial wastewater, mining, oil field injection water, making water purification, metallurgy, coal washing, leather and all kinds of ... can be recycled use; 4, in the oil refining industry, for oil and water separation, the effect is very good; 5 ... .5-4Water insoluble≤1.01.0 HDLL with SGS certification for water treatment PAC