... (4000 - 13000)mm 2)The main standards are 304, 304L, 316, 316L, 321, 321H, 310S, 347HFeatures:1) Size: (6-530) x ... and high-temperature resistant3) The main standards are 304, 304L, 316, 316L, 321, 321H, 310S, 347H4) Standards: GB/T14975-2002, GB ... , chemical, medical equipment, aviation, boiler heat-exchanger and other fieldsStainless Steel Pipes(special steel pipe,Seamless pipe,steel tube)