Dual Wheels Products DescriptionProuducts Name: Dual WheelsMaterials: Polyurethane (PU) ,Website:http://www.dc-casters.com, Rubber, Nylon(PA) Model: Dual Polyurethane Casters, Dual Nylon Casters, Dual Rubber CastersDC CASTERS dual wheels are able to bear 850KGS to 7200KGS extremely heavy cargo. The overweight loading capacity fully meet the requirement to transport heavy duty mechanical equipments. Until now, DC CASTERS dual wheels had exported to Korea, Philippines, Russia, U.S.A and etc.