... longer time and save the cost. Nylon roller in Machinery field, can use much longer ... used in China. We have been the supplier to OTIS(China),TOSHIBA(China),HITACHI(China),KONE(China),Schindler ... (China),ThyssenKrupp Elevator(China) and etc,. We can supply MC Nylon guide wheels ... 400,φ440,φ480,φ500,φ520,φ540,φ640. (For details, please see the enclosed) ModelDiameterApertureNumber of ...