... , one day 2 switches, 8 hours to 10 hours per switch is the ideal state.Certificate of our block making machine: CE, CIC Registered ... :(QT6-15, QT8-15, QT10-15, QT12-15) Economic Production Line(QT6-15, QT8-15, QT10-15, QT12-15) Well Chosen Production Line(QT6-15, QT8-15, QT10-15, QT12-15) Full ...