Instructions on the design of steam protection of process stills in oil treatment and petrochemical industries.
Инструкция по проектированию паровой защиты технологических печей на предприятиях нефтеперерабатывающей и нефтехимической промышленности. |
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GOST 12.1.009-76SSBT. Occupational Safety Standards System. … |
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