Russian standards PDF
Heavy-weight and fine-grained dispersed-reinforced concretes with steel fiber. Specifications
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United power system and isolated power systems. Relay protection and automation. Collection, storage and automatic transfer to dispatch centers of files with recorded fault data. Norms and requirements
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Major mobile communication functions for person with hearing disabilities. General requirements
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Pipeline valves. Brass ball valves. General specifications
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Oil and gas industry. Well-logging apparatus. General specifications
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Layout profile products from wood-polymeric composite. Specifications
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