API 5L/ASTM A53 GR.B, CARBON STEEL, SSAW STEEL PIPE FOB TIANJIN USD/TON Kunze Diameter 外径 (mm) 219 273 324 356 406 457 508 610 711 3 5 5 5 Thick 5 5 5 Thick 5 5 5 Thick 5 5 5 6 556 556 556 556 556 561 561 561 561 壁厚 (mm) 7 556 556 556 556 556 556 556 556 561 561 561 561 ...
Verenga zvimwe