... burning and fire 2,easy to operate and maintain 3,small invest,high return 4,moulds customized Hot! Hot! Hot! ... maintenance3, extrem low invest but high return,quite suitable for small investors Main specification:1,Type: manual mechanical vibrating brick ... solid bricks per hour10,Raw materials available:Industrial and construction waste, flyash,slag,cinder,ceramsite,coal gangue,rock flour,stone, ...