| Trunk pipelines. Updated version SniP III-42-80.
Магистральные трубопроводы. Актуализированная редакция СНиП III-42-80. |
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GOST 28548-90Steel pipe. Terms and definitions |
GOST 12.1.038-82Occupational safety standards system. … |
MISC RESOLUTION N 29On Approving General Eplosion Savety Rules for … |