SNiP (СНиП) 2.02.04-88Footings and Foundations on Permafrost SoilsОснования и фундаменты на вечномерзлых грунтах |
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SNiP (СНиП) 2.02.04-88Footings and Foundations on Permafrost SoilsОснования и фундаменты на вечномерзлых грунтах |
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