Ground leveling includes relatively heavy work. Of course need the help of a special device, called a stamper. The machine is also used in the construction of the venue.
The stamper is operated by two workers: one is moving, the other helps guide with the rope to make the machine route unfazed. As shown in the photo above.
During the process of piling the candidate floor of the field has not been completed, so long as that every day the stamper roars.