API 5L/ASTM A53 GR.B, KARBON STEEL, SSAW STEEL BORU EXW TIANJIN USD/TON Xarici Diametri 外径 (mm) 219 273 324 356 406 457 508 610 711 76 ABŞ dolları 7,98$607,98$607,98$607,98$607,98$607,98$607,98 $607,98 $607,98 $607,98 $607,98 壁厚 (mm) 7 $607,98 $60...
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