Brick machine 1.Leading professional manufacturer of clay brick machine since 1984 2.help build tunnel kiln,hoffman kiln 1.JKY50 Brick machine (vacuum extruder) 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, raw material sample: 2.The brick machine with the Wear resistant metal spraying technology was applied to ...