Tube KOS
KOS Pipe: a pipe with one or two longitudinal seams or one spiral seam, manufactured by combining shielded metal arc welding in protective gas environment and flux-cored arc welding, where the weld bead from shielded metal arc welding in protective gas environment is not completely removed by flux-cored arc welding passes
Source: "GOST R 53580-2009. National Standard of the Russian Federation. Steel Pipes for Oil and Gas Pipelines. Technical Conditions"
(approved and put into effect by Order of Rostekhnadzor dated 15.12.2009 No. 887-ст)
Понятие «труба кос» женского рода.
| Падеж | Единственное число | Множественное число |
|---|---|---|
| Р | трубы КОС | труб КОС |
| Д | трубе КОС | трубам КОС |
| В | трубу КОС | трубы КОС |
| Т | трубой КОС | трубами КОС |
| П | трубе КОС | трубах КОС |