1.door hinge bushing 2.Minimum coefficient of friction 3.Passed ISO 9001 ... .Low wear and size-ability.Material is Oilless Bearing (bushing),door hinge bushing for autoAdvantages at a glance1.Minimum coefficientof friction for ... as printing machine,elevator,spinner,tobacco machine,body-bulilding instrument,hydraulic pressure van,micro electircal machinery,solenoid valve,automobile,motorcycle,farming ...