Nylon Roller  and polypropylene wheels made of high-quality impact-resistant synthetic materials. These wheels have a smooth running performance on even floors. In addition, for low-noise operation, a noise absorbing wheel series with rubber damping ring is available. 

Its characteristics are: 1, hardness range. 2, high strength. 3, wear 4, oil. 5, resistance to oxygen and ozone. 6, 7 excellent vibration absorption performance, good low temperature performance. 8, radiation resistance. 9, has good machinability