... through using different mould. Brief intruduction :QTJ4-25 block making machine is a kind of automatic product ,adopts ... layered material feeding),through-body tiles,lock linkage blocks, road curb bricks, hydraulic blocks,hollow blocks, perforated bricks, ... blocks, interlocking blocks, etc.Applied Fieldswidely used in buildings, road pavers, squares, gardens, landscaping, city constructions, etc. QTJ4 ...