Profile: Manfredi SPA supplies good quality crucibles that help to obtain best results in castings and to keep machines away from any damage. Our multifunction suction unit can be used with dry model trimmers. This unit may work in conjunction with metal cutters, sandblasting machines, working benches or any other equipment where the removal of dust is required. We are accredited with the quality certificate ISO 9001 issued by the German institute TÜV.