ROTELU began its activity in 1988, dedicated to boiler works and steel structures. Currently we are a specialised company in welded constructions of high value for sectors as Hydroelectric Generation, Offshore Wind Power or Shipbuilding, supplying the following products: • Penstocks, Tunnel Lining, Manifolds and Wye Branch • Spiral Cases and Draft tubes for Hydroelectric Turbines • Pressure Vessels • Tanks • Steel Structures • Nodes and Boatlandings for Offshore Structures • Structural Pipes ROTELU has been working hand by hand with our customers since 1988, to achieve their objectives efficiently. Our key success factors are Quality, Environment Management and Occupational Health and Safety. ROTELU has CE marking for steel structures according to EN 1090-1 for execution class EXC3 since December 2014. In addition, ROTELU has a certificate of conformity with EN ISO 3834-2 "Quality requirements for complete fusion welding of metallic materials“.