| Rolled products for steel structural elements. General specifications
Прокат для строительных стальных конструкций. Общие технические условия. |
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GOST 12.4.121-83SSBT. Occupational Safety Standards System. … |
GOST 2.601-2013Interstate standard. Uniform system of design … |
Rostrud pot rm 016-2001 rd 153-34-0-03-150-00Safety Rules Occupational Health |