... , slabs, edgers, kerbstones, grass blocks, slope blocks, interlocking blocks, etc. 5.Productivity of QT4-20C concrete brick machine SizeSize mmCycle mouldingQTY ... *20016-20s4720~960pcs 240*115*9015-20s142520~3360pcsColor brick 225*112.5*60 15-17s285930~6720pcsLoading mixer of concrete block making machine ...