... , ASTM A333 Welded – API 5L, ASTM A53,ASTM A671/ A672. High yield Grade: X42, X46, X52, X56, X60, X65, X70, X80 ... 1,2.And some other international standard and grade.Material1) CARBON STEEL: ASTM A106 GR. B & C/ ASTM A53 GR. B & C ... or hot rolledPackingIn bundles or according to customers' requirementsUsage1.For high pressure liquid delivery such as water , gas and oil2.For ...