... Main technology specifications of QT12-15 automatic hollow cement brick making machine Dimension9350*2520*2950mm-QT12-15 ... Size1300*900mmMolding Cycle15-25SOverall Power46kwRaw Materialscrushed stone, sand, cement, dust and coal fly ash, cinder, slag, gangue ... buildings, road pavers, squares, gardens, landscaping, city constructions etc5.Capacity of QT12-15 automatic hollow cement brick making ...