Introduce：M7MI twin hydraform block machine is one kind soil interlocking block making machine. It is movable together with soil mixing machine. It can make mainly lego interlocking bricks or hydraform blocks. The capacity of for M7MI in one day is about 4500 pieces. The materials should be soil, clay , cement as well as fly ash M7MI twin hydraform block machine will make two pcs of each one block mold.