... , 316, 316L, 321, 321H, 310S, 347H4) Standards: GB/T14975-2002, GB/T14976-2002, GB13296-91, GB9948-88, ASTM A312, ASTM A213, ASTM A269, ASTM A5115) Scope ... of applications: for use in the petroleum, smelting, foodstuff, power,papermaking, chemical, medical equipment, aviation, boiler Seamless Stainless Steel Pipe