... .long service life, bearing wear and tear, resistant to oil, heat 2.good anti-cracking performance, small ... MXL. XL. L. H. XH. XXH.2).T2.5. T5. T10. T20.3).AT5. AT10. AT20.4).HTD3M. 5M. ... 150mm3) long service life, bearing wear and tear, resistant to oil, heat4) good anti-cracking performance, and small extending ... quality has reached the same level with abroad. T5 timing belt for ceramics, PAZ