automatic hollow block plant QT6-15B 1.automatic hydraulic 2.Siements motor,Mitsubish PLC 3.brick making machine 4.ISO,CE automatic hollow block plant QT6-15B automatic hollow block plant QT6-15B can produce all kinds of solid brick,hollow blocks,paver blocks,interlock blocks and so on,just change the relevant blocks moulds.1. automatic hollow block plant QT6-15B advantages1. Strong High-Strength ...