... fly ash, cinder, slag, gangue, gravel, perlite, and other industrial wastes.Applied Products:concrete blocks, solid/hollow/cellular masonry products, paving stones ... ) 3. Simple Production Line for Block Making: Batching, Automatic Mixing, Automatic Moulding/Block Producing, Piler Stacking, Forklift Transferring. (need 12 workers) Simple Production Line Block and Brick Models