... -cracking performance, small extending rate Supply Type:1).MXL. XL. L. H. XH. XXH.2).T2.5. T5. T10. T20.3).AT5 ... crack6) competitive price7) widely used in automobiles, and machinery equipment for auto, sewing, spinning, food processing, household appliances,printing machines, communication ... tools and instruments. PU variou open type timing belt STD, T, AT, H, L,HTD