Seamless Stainless Steel Pipe 1) Grade: 304, 316L, 321H, 317L, 347H, 310S, 2205, 2507, 904L 2) ... : 6mm-830mm WT: 1mm-40mm Seamless Stainless Steel Pipe 1) Grade: 304, 316L, 321H, 317L, 347H, 310S, 2205, 2507, 904L 2 ... -830mm WT: 1mm-40mmStainless Steel Seamless Pipe1) Grade: 304/L/H, 316/L/H, 321/H, 317/L, 347/H, 310S, 2205, 2507, 904L ...