Eurostat, Luxembourg. 73066031 (01/1988-12/2003) Tubes and pipes and hollow profiles, welded, of square or rectangular cross-section, of iron or steel, with a wall thickness of <= 2 mm (excl. seamless and of cast iron): CN 73066031 /Exports /Unit = Prices (Euro/ton) /Partner: Liechtenstein /Reporter: European Union /73066031:Tubes and Pipes and Hollow Profiles, Welded, of Square or Rectangular Cross-section, of Iron or Steel, With a Wall Thickness of <= 2 mm (Excl. Seamless and of Cast Iron).