... through using different mould. Brief intruduction :QTJ4-25 block making machine is a kind of automatic product ,adopts flat vibration ... device and the strong material-distributing structure ensure the block's quality of various materials .It adopts PLC control ... products, slabs, edgers, kerbstones, grass blocks, slope blocks, interlocking blocks, etc.Applied Fieldswidely used in buildings, road pavers, ...