API 5L GR.B/ASTM A53 GR.B, CARBON FERRUM, LSAW FERRUM EXW Extra Diameter (mm) USD/TON 406 457 508 609,6 711.1 762 812 863.6 Wall 8 1,080 1,072 1,080 1,064 1,064 1,064 1,064 1,064 Crassitudo 9.53 1,072 1,688 1,064 1,041 1,041 1,041 1,041 1,041 壁厚 (...
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