Featrues: 1)the company bringing in the only one Fatigue Testing Machine in China; 2)diffrent kind of belts,including Sunlley(TM), Banded belts,and Agricultural belt Specially Processed; 3)the company create the chains_driving_up_down potato_havesting machine belt,which is ring belt and is processed specially; 4)the belt has been tested by experts in the prac-tical havesting,proving good and smoothly.