... 2.energy saving block machine 3.high quality steel material 4.strong adaptabilit This two-stage vacuum brick extruder ... for shale ,coal gangue,coal ash,industrial tailings and other kinds of raw materials.Use floating trowel,wear-resistant lining ... the high output,low energy consumption,low maintenance and other advantages of the equipment.TypeProduction capacity(block/hr)Forming moistureVacuum ...