Steel cold rolling wastewater special agent 2, the company specifically for steel cold rolling wastewater treatment independent research and development of high-tech products. The product is a complex polymer water treatment agent, the molecular chain with a large number of positive charge groups, is a class of unique properties of cationic polymer. Has a strong flocculation and reaction capacity, specifically for steel waste water treatment. The product can be used in conjunction with other pharmaceuticals, the treatment of high concentrations of steel wastewater has a very good effect.