GOST 9941 SEAMLESS COLD AND WARM-DEFORMED TUBES MADE FROM CORROSION-RESISTANT STEEL SPECIFICATIONS - Incorporating Amendments 1: 8/1983, Amendment 2: 6/1987, Amendment 3: 6/1988, Amendment 4: 8/1988; Amendment 5: 6/2001; Includes Corrigendum: 2011
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