It sells machine imported from Italy to make blends light cement. Mix cement with polystyrene pearls (dry ice), sawn or foam. Ideal for topping or filling plycem walls to make them thermoacoustic insulations. Pump vertically up to 6 floors. It comes with several meters of manguearas. The machine stopped because the company broke, not because it was damaged. Extreme investment for a contractor. Mix 1 meter cube at a time.