API 5L GR.B/ASTM A53 GR.B, CARBON STEEL, LSAW STEEL PIPE FOB TIANJIN Kunze Diameter 外径 (mm) USD/TON 406 457 508 609.6 711.1 762 812 4908 989 863 2 1,002 1,002 1,002 Hukobvu 9.53 986 970 978 955 978 978 978 978 壁厚 (mm) 10 947 931 939 955 978 978 978 9...
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