... system, CUMMINS engine, advance auto leveling system and 7.5m/8.0m screed, which improved the construction reliability and ensured ... parameters Model: crawler full hydraulic, self control drivePaving width: 2.5m-7.5m(8.0m option)Max. Paving thickness: 300mmPaving speed: 1 ... mechanical extension.Widening section length of screed: 0.25m×20.5m ×2 0.75m ×21.0m×2Oscillation frequency: 0-41HzVibration ...