API 5L/ASTM A53 GR.B (Kichik diametrli ERW po'lat quvur) tashqi diametrli devor qalinligi EXW tashqi diametri devor qalinligi EXW (mm) (mm) (mm) (mm) (mm) ) mín USD/TON 33,4 (1″) 2,1-2,4 621,90 PH133 3,0-5,75 598,96 2,5-3,25 603,01 6,0-7,75 608,41...
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