With high fatigue life, high wearing resistant and high strength properties Timing Roller Chain 25H, Timing Roller Chain 25-1, Timing Roller Chain 25-2, Timing Roller Chain 219H, Timing Roller Chain 270H, Timing Roller Chain 35, Timing Roller Chain BF05T, Timing Roller Chain 06AT,Timing Roller Chain 06BT-1, Timing Roller Chain 06BT-2 specifications available