... 0kw 110v 60HZ 3000W AlternatorDrive systemElectric servo systemLaser control systemLaser transmitter,Laser ReceiverWheels33.5*25.4(cm) ... .3.With the combinationof automatic control systems of computer control technology,laser measurement,control technology,servo drive technology,electronic ... and manual operation mode.7.Single walk-behind control,easy and flexible.8.Convenient for assembling and ...