API 5L GR.B/ASTM A53 GR.B, DUR CARBON, LSAW DUR PIBELL EXW Tu Allan Diamedr 外径 (mm) USD/TON 406 457 508 609.6 711.1 762 812 863.6 Wal 8 1,008 , 1,008 8 1,008 , 1,072 1,072 1,072 Trwch 9.53 1,080 1,064 1,072 1,048 1,048 1,048 1,048 1,048 壁厚 (mm) 10 1,041 1,025 1. .
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