Warmly welcome to Helsinki for the ITA-AITES 2011 World Tunnel Congress "Underground spaces in the service of a sustainable society" and the 37th ITA-AITES General Assembly, which will be held at Finlandia Hall Conference and Exhibition Centre from 20 to 26 May, 2011. We look forward to meet you at Protan Ventiflex stand no. 21.
Read more about the exhibition at WTC homepage
