| Heavy and sand concretes. Technical specifications.
Бетоны тяжелые и мелкозернистые. Технические условия. |
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MinNR Приказ N 268 от 27.08.2009Ministry of Natural Resources and Ecology. . … |
GGTN Resolution 22 of 5 22 02Approval of the statute and guidelines on … |
FSSN 02-18-07-4843Premiums for Occupational Disease Insurance |