Water treatment seriesCombined packingCombined multi-hole ring packingThe combined multi-hole ring padding is comprised of the plastic ring piece (framework ), the soft fibrous bundle and the central rope. With two kinds of plastic rope and fibrous rope.There are 40 square holes and 8 bunches of aldehyded silk around the plastic ring . Each bunch silk colludes 4 square holes , so the aldehyded silk fixes firmly on the ring . The product is the ideal packing used in strong hydrosphere current of rushing water . The multi-hole ring packing and the combined double ring are similar when they are used in bio-chemistry treatment process of waste water . We can also produce according to customer’s specification.