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ГОСТ 30211-94

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ГОСТ 30257-95

ГОСТ 30245-2003

Профили стальные гнутые замкнутые сварные квадратные и прямоугольные для строительных конструкций. Технические условия
Steel bent closed welded square and rectangular section for building. Specifications

SKU: 4088 Category: GOST - State standards

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