... 304/L, 316/L, 321, 316Ti, 310S, 347/H, 2205, 2507, 904L. SPEC.: ASTM A312, A790;DIN17456, 17458;JIS G3459, 3463. STAINLESS STEEL SEAMLESS ... PIPESGRADE: 304/L, 316/L, 321, 316Ti, 310S, 347/H, 2205 ... EQUIPMENT Hydrostatic test Laser diameter testMachanical propertyUT test stainless steel seamless pipeA312