... year warranty QT4-40 manual hollow block making machine, QTJ4-40 block machine Feature:1.A reformed machine ... (upper mould and bottom mold)Production processRaw material(cement,sand,crushed stone,water etc.)---defined amount---mixer--- ... power35KNOverall power9.5KWDimension1350x1460x1800mmPallet size850x450mmRaw materialRiver sand,sea sand,cement,cobble,crushed stone,fly ash,cinder,slag,gangue, ...