Smart vibration device Features1. Suitable for compacting asphalt surface,gravel and sandy soil,also suitable for lawn.2. Can go forward,reverse and vibrate without moving,especially suitable for narrow field.3. Impact force 10KN.Compacting principle is linearity compacting, the unit area pressure is 20 times of the compactor which the impact force is 15KN.4. Easy operating,reasonable design,low ...