seamless stainless stainless pipe steel grade:304,316l,301,310S,321 ... -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 ...