A. Zimmermann A.-G. Reussbühl Luzerna, Switzerland Wooden windowsConservatoriesWindows of wood and aluminium, combined
Dämmconcept GmbH Oldenburg, Germany Building redevelopmentRoller shutters made of woodSolar screens for windows
ECS Schalltechnik GmbH Wilhelmsfeld, Germany Consulting engineers for sound insulationExperts on acousticsSound-absorbing encasings for machines
ABN GmbH Breitenberg, Germany Consulting engineers for sound insulationSound-absorbing encasings for machinesAcoustic construction products
Tischlerei Silvio Hahnke Hildburghausen, Germany Office furnitureRestoration of historical interiorsdoors
AWA Gesellschaft für Schallschutz, Wärmeschutz und Alternativenergie m.b.H. Berlin, Germany Sound insulation for working areasSound insulation of industrial plantsSound insulation work
ULUS YAPI TESISAT MALZ.SAN.TIC .A.S. Türkiye Buildings (earthquake-proof)Sound-absorbing curtainsSound-proof windows
Hagmeyer Schall- und Brandschutz GmbH & Co. KG Germany Doors made of metalDoors made of steelfire doors
Frank Halfar GmbH Bad Soden-Salmünster, Germany accessories for roller shuttersInsect repellent systemsInsect screens