... wastewater, mining, oil field injection water, making water purification, metallurgy, coal washing, leather and all kinds of chemical waste water treatment; 3, industrial application; paper ... be recycled use; 4, in the oil refining industry, for oil and water separation, the effect is very good; 5, the company ... .5-4Water insoluble≤1.01.0 HDLL with SGS certification for water treatment PAC