Articulated telescopic trailer boom lift is used for maintenance or aerial work,can also move a short distance;can move upward and downward automatically,be operated both on platform or on ground;With compact structure of lift could be used in tight space.AC or DC or Diesel,of course can be use two power,no noise and air pollution.Four full-automatic hydraulic legs,be more stable;Boom rotation 360 degree,can work across the barriers'