Zhengzhou kelin water purification material co.,ltdOur factory mainly engaged in activated carbon and related water purification materials. We have passed the ISO9001 certification. We focus on the produce of various types of cylindrical, granular, powder and high level impregnated activated carbon.Our activated carbon used in various industries in various countries for water purification, air treatment, environmental project, food decolorization and gold mining. Our activated carbon have been exporting over 40 countries and regions.