| Concrete and reinforced concrete structures for sewage, water, and gas pipeline manholes. Specifications
Конструкции бетонные и железобетонные для колодцев канализационных, водоводных и газопроводных сетей. Технические условия. |
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GOST 1759.3-83Nuts. Surface imperfections and inspection methods |
GOST 12.1.020-79SSBT. Occupational Safety Standards System. … |
Roszeldor 22 TSZSealing of Rail Cars and Containers |