System of design documents for construction. Industrial process automation. Instrumentation symbols for use in diagrams
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System of design documents for construction. Execution rules of working documents for metal structures
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Explosionproof electrical apparatus. General requirements and methods of testing
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Pressure gauges, vacuum gauges, pressure-and-vacuum gauges, draught gauges and draught-and-pressure gauges. General specifications
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Floor-mounted flexible electrified vehicles. Testing methods
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