The leveling apparatus 2, wherein at least a pair of the actuators are installed opposite to each other on {HEAD ~ a radial line} drawn on {TAIL ~ a left or right side} that is at an angle of about 40°˜50° to the center line in the length direction of the lower frame 
drawn on
The leveling apparatus 2 , wherein at least a pair of the actuators are installed opposite to each other on { HEAD ~ a radial line } drawn on { TAIL ~ a left or right side } that is at an angle of about 40 ° ˜50 ° to the center line in the length direction of the lower frame
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH