... 3.Easy operation 4.All size blocks,most paver QT4-20C semi automatic block making machine Main features:The brick ... with and without face mix,curbstones and similar element.QT4-20C adopts hydraulic system and the working procedure is very ... batching and leading-out,also hydraulic molding.Technical parameter ModelQT4-20C semi automatic block making machinePrimary structureMain machine,JD500 Mixer, ...