Russian standards PDF

Chill moulds. Thickness of walls

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Chill moulds. Cooling pins. Dimensions

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Nature protection. Hydrosphere. General requirements for surface and underground water protection against pollution by oil and oil products

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Glow discharge thyratrons tubes. Basic parameters

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Shut-off device for pressure gauges. Main technical data

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Plates of all-cast steel and iron moulding boxes. Construction and dimensions

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