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Unified system for design documentation. Graphical designations in diagrams. Signal technics

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Unified system of design documentation. Graphical identification on electric diagrams. Storage

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Unified system for design documentation. Symbolic representations. Pipeline accessories

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Unified system for design documentation. Graphic designations. Evaporating apparatuses

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Unified system for design documentation. Graphic designations. Heat exchangers

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Unified system for design documentation. Graphic designations. Column apparatus

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