Russian standards PDF
Products and systems for the protection and repair of concrete structures. Requirements for systems for concrete protection in the course of repair works
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Information technology. Local area networks. Media access control layer service
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Four-jawed independent chucks. Basic and coupling dimensions
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Product-quality index system. Machines and instruments for determining mechanical properties of materials. Index nomenclature
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Ready-made sewing goods. Methods of check-up quality of ready-made goods
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