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Refrigerating systems and heat pumps. Qualification of tightness of components and joints
Document status: Active
Electrical supply track systems for luminaires
Document status: Replaced by GOST IEC 60570-2024
Water-tube boilers and auxiliary installations. Part 5. Workmanship and construction of pressure parts of the boiler
Document status: Active
Three-phase oil-filled hermetic power transformers. Specifications
Document status: Active