... HTD3M. 5M. 8M. 14M. 20M.5).STD2M. 5M. 8M.6).S3M. S5M. S8M. S14M.7).RPP5M. RPP8M. RPP14M.8 ... rate5) good surface without crack6) competitive price7) widely used in automobiles, and machinery equipment for auto, sewing, spinning, food processing, ... appliances,printing machines, communication equipment, chemical machines, and various precision machine tools and instruments. Open type PU timing belt 3M/5M ...