Regulations for the Design and Safe Operation of Process Piping.
Правила устройства и безопасной эксплуатации технологических трубопроводов. |
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RD 31-84-01-90Uniform Occupational Safety Regulations for … |
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GGTN Letter BM-61-917Gosgortekhnadzor and Roskomnedra Letter No. … |
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SakhalinGD 169Inter Departmental Commission on Foreign Labor |