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United power system and isolated power systems. Relay protection and automation. Distance and overcurrent protection of power lines and equipment at voltage class 110–220 kV. Testing

Document status: Active

Nickel powder. Technical requirements

Document status: Replaced by GOST 9722-97

Food additives. Fumaric acid E297. Specifications

Document status: Active

Inserts of cemented carbide alloys for shearing and bending dies (blanks)

Document status: Active

Stop keys. Design and dimensions

Document status: Active

Dried vegetables. Methods of determination of metal impurities and pests of cereal stocks

Document status: Active