| Seamless welded steel pipeline components for PN<10 mPa (<100 kgf/cm2). Specifications
Детали трубопроводов стальные бесшовные приварные на Ру < 10 МПа (< 100 кгс/см2). Технические условия. |
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GOST 12.2.037-78SSBT. Occupational Safety Standards System. … |