... , heat 2.good anti-cracking performance, small extending rate Supply Type:1).MXL. XL. L. H. XH. XXH.2).T2.5 ... surface without crack6) competitive price7) widely used in automobiles, and machinery equipment for auto, sewing, spinning, food processing, household appliances,printing ... , chemical machines, and various precision machine tools and instruments. Open type PU timing belt 3M/5M