... ,speed reducer,swivel connection,valve,tube accessiblely,can reduce time of mainterance.3,Famous brand hydraulic components are adpoted ... .7,Famous hydraulic traction motor is adopted,the speed of which can be adjusted with an extensive range.8 ... damper seat,comfortable,accords with the requirements of ergonomics.9,Ascendant performance of complete appliance,with extraordinary operation efficiency.10 ...