Brussels, 26/04/2010 (Agence Europe) - The Nabucco pan-European gas pipeline project took a further step towards becoming a reality on Friday 23 April, with the launch of a call for tenders to supply construction materials, such as pipes and steel valves. This first phase of the procurement process, worth €3.5 billion, will close on 17 May. In 2008, the total cost of the Nabucco project was estimated at €7.9 billion by the consortium responsible for its construction, which is made up by...