Size range:: 2-3/8" ~ 6-5/8"
All API grade(E-75, X-95,
G-105, S-135) and Sour Service grade(SS-95, SS105)
Integral type and Friction Weld on type
Size range: 2-3/8" ~ 11"
Slick and spiral drill collars.
Size range: 2-3/8" ~ 20"
All API grades and Connection
Gas tight connection is available
Raw materials for Drill collar, Plain end pipe for OCTG,
Semi-finished Drill Pipe.