Russian standards PDF
Commodity portland cement clinker. Specifications
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Gauges for taper thread connection of tubing, casing, drill and line pipes. Methods for measuring geometric parameters
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Pipeline valves. Operating manual. Rules of the implementation
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Traction reducer tooth gears and its blanks, reducer gear housing for subway rolling stock. Specifications
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Means of elimination of accidents in boreholes. Terms and definitions
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Natural gas, conditioned for main pipeline transportation. Specifications
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