... .A: We have a wide range of clutch disc items available for American, European, Japanese, and Korean Vehicles, OD range from ... quality toque spring with material 60 Si2Mn, Forging clutch hubs.E: OEM heattreatment system for processing.F: Steady force transmission, Reliable transfer ... wear and tear, Noiseless.I: The annual production capacity of clutch disc 1.8 million sets. clutch disc FOR UTB TRACTOR