API 5L/ASTM A53 GR.B, CARBON STEEL, SSAW FERRUM PIPES FOB TIANJIN USD/TON Extra Diameter (mm) 219 273 324 356 406 457 508 610 711 762 813 914 Wall Crassitudo 6 549 549 549 549 549 549 549 549 549 549 554 554 554 554 554 (mm) 7 549 549 549 549 549 549 549 554 554 554 554 .
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