... -4500HzPallet Size1300*900mmMolding Cycle15-25SOverall Power46kwRaw Materialscrushed stone, sand, cement, dust and coal fly ash, cinder, slag, gangue, gravel,perlite, and ... brick making machine 8.The corner of the factory of QT12-15 automatic hollow cement brick making machine QT12-15 Automatic Hollow Cement Brick Making Machine,Construction Machine/Equipment ...