... 4.769Front suspensionWith shock absorber,special designed enhanced spring for tractor truckRear suspensionWith shock absorber,special designed enhanced ... ,Max. towing mass:60000kgCabinT360 high-roof,rear mechanical type suspension,3 seats,with sleeper, with air conditionChassis ... /165Ah BatteryBrake system1.Service brake:dump-type air brake,2.Parking brake:spring type air shut-off brake,3.Assistant ...