... , High Quality, Installation, training , block machin Fully-Auto Concrete Block Making Production Line, block machineDetailed Product DescriptionUsually, ... cubingStage 6. pallet returningStage 1. raw material batching Auto-aggregate batching plant prepqre sand, scree, etc. with ... air compressor.-PLC control system 2, it controls the working conditions of concrete belt conveyor, concrete storage hopper, ...