... tear, resistant to oil, heat 2.good anti-cracking performance, small extending rate Supply Type:1).MXL. XL. L. H. XH ... tear, resistant to oil, heat4) good anti-cracking performance, and small extending rate5) good surface without crack6) competitive price7) widely used ... machine tools and instruments. PU variou open type timing belt STD, T, AT, H, L,HTD