... 2. Full automatic PLC control 3. ISO9001 IS014001 CE brick making machine QT12-151. Raw material: crushed stone, sand, cement, ... gravel, perlite and other industrial wastes. 2. Applied products: concrete blocks. Solid / hollow / cellular masonry products, paving stones ... slope blocks, interlocking blocks etc.3. Applied fields: widely used in buildings, road pavers, squares, gardens, landscaping, city ...