... 1.the trais of movable flexibilitty,anticracks, 2.perfect property, thenmal resistance, 3.oil ... transmissionPolyurethane timing belts specifications:1) XL,L,H,DH,XH2) 2M,3M,5M,8M,10M,14M,DHTD8M, ... in Truly Endless, any length.(2)PU double-side timing belts longer than 2 .4meters.(3)Flex timing ... belts longer than 2 .3meters.Widely used in ...