Tubes and pipes, of circular cross-section, of steel other than stainless steel, hot or cold formed and welded, riveted or similarly closed, of an external diameter ? 406,4 mm
Cevi in votli profili, s krožnim prečnim prerezom (razen iz nerjavnega jekla), toplo ali hladno oblikovani in varjeni, kovičeni ali podobno zaprti zunanjega premera <= 406,4 mm