... hr 4.Platform vibration 5.Cycle Time:15~25s Item: Full Automatic Concrete Paver Stones Making Machine ⅠBrief intruduction :n ... hollow bricks, with a double material-feeding machine can produce all kinds of the colored road bricks,grassland bricks, and slope ... hydraulic blocks,hollow blocks, perforated bricks, and standard bricks etc. Full Automatic Concrete Paving Stones Making Machine QT8-15