執(zhí)行標準:
GB/T8163-2008　GB/T8162-2008　GB5310-2008　GB3087-2008　 GB9948-2006
GB6479-2000　GB/T5312-1999　GB/T18984-2003　GB/T20801-2006
GB/T3639-2000　GB/T9711.1-1997
API Spec 5CT　　　API Spec 5L
ASTM A106B/A53B/A179/A192/A200/A210A1/A210C/A213/A333/A335
ASME SA106B/A53B/A179/A192/A200/A210A1/A210C/A213/A333/A335