Tightness testing of water and sewage networks – MichaÅ‚ Andrzejewski, Gamm-Bud sp. z o.o.
Method to replace existing sewage pipes without any excavation – Soren Ulrich Nielsen CEO, Scandinavian No-Dig Centre
Presentation of Amiantit Poland Sp. z o.o.
Trenchless technologies in the aspect of "green" tenders – PaweÅ‚ Torbus, Steinzeug Keramo
Trenchless technologies and rainwater retention – prof. dr hab. inż. Cezary Madryas, Politechnika WrocÅ‚awska