... 3:widely used in African countries. 4) CE,ISO QUOTATIONQT4-20C Concrete Block Making Machine Brief intruduction : a) It is a ... , grass blocks, slope blocks, interlocking blocks, etc. Productivity of QT4-20C block making machine SizeSize mmCycle mouldingQTY/MouldPer hour Hollow brick ... ~3360pcsColor brick 225*112.5*60 15-17s285930~6720pcs QT4-20C FULL AUTOMATIC BLOCK MADING MACHINE