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 1,081 1,058 1,066 1,050 1,0 50 1.050 1.050 1.050 Debelina 9,53 1.074 1.043 1.050 1,027 1,027 1,027 1,027 1,027 壁厚 (mm) 10 1,035 1,00...
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