... "-6 5/8" 2. Grade:E,X,G,S 3. Standard: API 4. Upset:IU,EU,IEU 5. HB:Arnco100XT, ... 150XT,300XT, Botn1000,3000 Our company's drill pipes are in accordance with API 5D, API SPEC ... material of drill pipe body are chosen by the 1&3 group of API 5D.(Group 1-Grade E75; Group ... 3-Grade X95, G105, S135).The choice of tool joints is ...