clay brick machine 1.high quality,orginal price, 2.energy saving, 3.easy maintenance 4.ISO 9001:2000 clay brick machine is suitable to produce all kinds of hollow or solid brick & block , with all kind of raw material: clay ,shale ,coal slack, fly ash etc, Wear resistant metal spraying technology was applied to the screw, pug mill, axis of screw and seasoning, conditioning, quenching treatment ...