| Construction of trunk pipelines and flowlines. Welding.
Строительство магистральных и промысловых трубопроводов. Сварка. |
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RusRWS СТО РС ФЖТ 11-2005State Agency Registrar Of Certification For … |
MCHS 383On improving the forecasting of emergency … |
SNiP 2.08.02-89Public Buildings and Installations. |