... free brick machine burning free, for making environmental brick, hollow brick, grass brick, standard brickthe purpose and characteristics 36 ... to produce specifications of high-intensity green tile, grass brick, hollow brick, standard brick, wall brick eaves hats, etc., ... Processed data for the following specifications: Hollow block: 390 × 190 × 190 4 pieces / mold Hollow block: 390 × 240 × 190 ...