... model is a multi-purpose machine. It can manufacture wall bricks, heat-insulating bricks, grass pavers, square pavers, slop protection pavers, road shoulder ... , QT6-15 can produce 0.45 m2 blocks, 15pcs perforated bricks within 15 seconds, and QT8-15 model can produce 0 ... .56 m2 blocks, 20pcs perforated bricks within 15s, notably raising working efficiency.2. The model is ...