| Heavy and fine-grained concrete. Specifications
Бетоны тяжелые и мелкозернистые. Технические условия. |
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MISC Supreme Soviet Decree 311 IXSupreme Soviet Decree 311 Ix Work Conditions … |
GGTN Resolution 29 of 05 05 03Approval of general rules for explosion safety … |
Rosleshoz 69Documentation for Forest Reclassification |