Masts (poles) for overhead contact line supports of railways. Specifications
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Centrifugal reinforced concrete posts for railway line equipment. Specifications
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Centrifugal reinforced concrete posts for railway overhead line equipment. Specifications
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Concrete towers for railway high voltage signal line of autoblock. Technical requirements
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Construction, equipment and rolling stock clearance diagrams for USSR Metro
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Reinforced for overhead contact line supports оf railways. Specifications
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Automatic tensioning devices of overhead contact line of railway. General specifications
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Pre-stressed reinforced concrete bars for turnouts. General specifications
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Prestressed reinforced concrete beams for switches. General specifications
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Automobile roads of general use. Requirements for the level of maintenance
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Cross beams of rigid portals for overhead contact line of railway transport. General specifications
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Overland and underground narrow gauge railways. Width of gauge
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