Russian standards PDF
Gas system. Main pipeline gas transportation. Save-health conditions of staying and occupation of buildings and structures. Microclimate. Technical requirements
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Gas distribution systems. Management systems of gas distribution network
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Surge arresters for power supply systems of electrified railways. General specifications
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Plastics. Thermoplastic polyester/ester and polyether/ester elastomers for moulding and extrusion. Part 2. Preparation of test specimens and determination of properties
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