Single Drum Vibratory Roller HS820B Model:HS820BHS820 vibratory roller is a heavy vibratory roller ,provided with high excitation force and high static linear pressure ... -viscous materials such as gravel,gravelly soil,detritus sand and stone mixture,rock filling and semi-clay.It is mainly applied ... ,mining area,embankment,airport,port,railway and industrial site. Vibratory Roller