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| English | Thesaurus |
| Central Steel Tube Co. | CST (США) |
| Indonesian National Steel Tube Co. | Inastu (Индонезия) |
| Metal Rolling and Tube Co. Pvt. Ltd. | MRT (ЮАР) |
| Middle East Tube Co. Ltd. | Metco (Израиль) |
| Pacific Tube Co. | Patco (США) |
| Welded Tube Co. of America | Welco (США) |