Liaocheng yongxing environmental science and technology co, ltd was founded in 2001.it is located in liaocheng city shandong province china. we are a high technological company which is a collection of scientific research, production, sales and service. we are a specialized company of producing polyacrylamide ,flocculant, polyaluminimum chloride(pac). we also have the ability of producing pam with the feature of anion, cation and zwitterion. our products are used in mining, coal washing, petroleum, mining, paper manufacturing industry, ministry of metallurgical industry, municipal sewage processing, brewhouse, food products factory , slaughterhouse sewage processing ,tannery, building industry, spinning industry and other products broadly. we always regard product quality as lifeline of the enterprise and bringing forth new ideas as the motion of enterprise. we have three service centers: research center: technological talents and returned students are charge of developing macromolecule products. sales center: helping the clients choose the most proper and the lowest price according to the needs of the clients. after service center: analyzing and solving the problems that clients meet. if necessary, we can choose the new products for the clients again.