MADE IN ItalyDear Sir, It is our pleasure to introduce ourselves as a leading manufacturer of the following: 1. Components for central heating systems2. Valves and accessories for radiators3. Underfloor heating system control4. Backflow prevention devices5. Fittings6. Expansion vessels, actuated mixing valves, thermostats7. Air separation and venting devices8. Distribution manifolds, zone valves, boxes and accessories9. Plumbing components 8. Automatic flow regulators and balancing valves10. Gas safetyCALEFFI S. p. A.