... to make hollow block color block paver,brick QT4-26 semi-automatic brick making machineMain technical parameter : Molding pieces400*200*200 ... size880*550*30mmRaw Materialscrushed stone, sand, cement, dust and coal fly ash, cinder, slag, gangue, gravel, perlite ... masonry products, paving stones with or without face mix, garden and landscaping products, slabs, kerbstone , grass blocks, slope blocks, ...