... quality with lower rice zhengzhou shuliy machinery co.,ltd2012 hollow block machine for hot salesRaw material :Sand ,crushed ... other industrial wastes.Applied products :concrete blocks,solid\hollow \cellular masonry products,paving stoned with or without ... ,landscaping,city construction,etc.QMJ4-A fixed type hollow block machine Brick specificationBrick quantityCycle timeCapacity per 8 hours240 ...