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Federal norms and regulations in the field of industrial safety 'Safety rules for gas distribution and gas consumption networks' Order No. 531 dated 15.12.2020 of the Federal Service for Environmental, Technological and Nuclear Supervision (Rostechnadzor)
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Instructions for restoring water supply and sewer networks using the method of installing continuous polymer hoses
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Land improvement works (QR 01.01 - Construction Regulation 01.01)
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