ASTM A53/A106/API5L SCH40 seamless pipes 1) Material: 304, 321, 316L, 304L, 310S 2) OD:4 - ... 3) WT:1mm-50mm ASTM A53/A106/API5L SCH40 seamless pipes 1) Grade: 316/316L/316TI, 321/321H, 310S, 317L, 347H2 ... wooden case/ply wooden box as per customers' requirement Seamless pipes in stock