Drill pipe, drill collar, heavy drill pipe, coupling, perforating gun barrels, full series of API tube etc;
Specification:API 5L、API 5CT、API 5DP、API SPEC 7-1 etc;
Grade:J-55、K-55、N-80、L-80、L80-9Cr、L80-13Cr、P110、Q125、X70、X80、S135、G105 etc;
Size range:OD 60.325mm-254mm. |