API 5L/ASTM A53 GR.B, OGLJIKOVO JEKLO, JEKLENA CEV LSAW FOB TIANJIN Zunanji premer 外径 (mm) USD/TONA 406 457 508 609,6 711,1 762 812 863,6 Stena 8 1,094 1,086 1,094 1,079 1,0 79 1,082 1,079 1,079 Debelina 9,53 1,086 1,071 1,079 1,055 1,055 1,058 1,055 1,055 壁厚 (mm) 10 1,047 1,03...
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