... service life , low wear and tear , Noiseless auto/car knocking sensor for mini van and mini truck 1,High quality, reasonable &competitive ... price.2,We can provide many kinds of the clutch disc and clutch kits. O.D range from 160mm ... oil 5,High standard heat treatment system for progressing.6,Steady force transmission , Reliable transfer torque.7,Long service life , low wear ...