... )The main standards are 304, 304L, 316, 316L, 321, 321H, 310S, 347HFeatures:1) Size: (6-530) x (1-20) x (4000 ... ) The main standards are 304, 304L, 316, 316L, 321, 321H, 310S, 347H4) Standards: GB/T14975-2002, GB/T14976-2002, GB13296-91 ... , chemical, medical equipment, aviation, boiler heat-exchanger and other fieldsStainless Steel Pipes(special steel pipe,Seamless pipe ...