... characteristics of novel structure, advanced technology, high productivity, huge extrusion pressure, high vacuity, double clay bars and semi-hard ... hollow brick, high adulteration fly ash agglomeration brick and the production with gangue, shale, low plasticity clay, ... .0925PowerkW132-1606Shape sizemm6625×1800×16087Weightkg16000 compact two stage vacuum extruder ,clay brick machine, brick machinery