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Pipeline valves. Metal ball valves for petroleum, petrochemical and allied industries. General specifications
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Waterproofing materials for underground parts of structures of nuclear facilities. Test method
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Textiles. Quantitative chemical analysis. Part 1. General principles of testing
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Wood-cutting tool. Taper shanks with screw thread. Dimensions
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Modified wood. Method for determination of wear-proofness
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Strips and foil made of iridium and rhodium. Specifications
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