... 2.Grade:E,X,G,S 3.Upset:IU,EU,IEU 4.HB:Arnco100XT,150XT,300XT, Botn1000,3000 5.IPC:TC2000,TK34 For ... drill pipes are of high physical property, for their strictly controlled processing of sulphur and ... To improve the galling-resistance during initial break-in and drilling operation, all threads are also ... connections. Drill pipes of our company are produced in accordance to Standards of API 5DP, API7 ...