Cementir SpA said its Danish unit Unicon Sa is acquiring New Jersey, US-based Vianini Pipe Inc for Euro 12m from Vianini Industria SpA.  In 2004, cement manufacturer Vianini Pipe had a net profit of US$2.2m, and sales of US$17.7m, Cementir said.  ’The acquisition will allow the Cementir group to strengthen its position in the US, where it already has other units,’ it said.  Published under Cement News