Russian standards PDF
System of standards on information, librarianship and publishing. Codes for the representation of names of languages
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Electronic tubes and valves. Compatibility dimensions. Pin alignment. Gauges
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Articles made of metal-ceramic hard alloys for mining tools. Shapes and dimensions
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Bogies two-axle three-piece for freight wagons of 1520 mm gauge railways. General technical specifications
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Sintered Hardmetals. Methods for determination of porosity and microstructure
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Agrifoodstuffs equipment. Liquid pumps. Safety requirements and design rules
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