API 5L GR.B/ASTM A53 GR.B, CARBON FERRUM, LSAW FERRUM FOB TIANJIN Extra Diameter 外径 (mm) USD/TON 406 457 508 609,6 711.1 762 812 863.6 Wall 8 994 986 994 978 1,002 1,002 1,002 1,002 Crassitudo 9.53 986 970 978 955 978 978 978 978 978 (mm) 10 947 931 939 955 978 978 978 9. .
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