Sanjack: Your Premier Choice Of Kelly bar
Sanjack has abundant experience in R & D, production and sales of Kelly bars.The Kelly bar is located at the top of the drill string, and its main function is to transmit torque and bear the total amount of the drill string.
Sanjack: Your Best China Kelly bar Manufacturer and Supplier
The end face of the driving part of Sanjack Kelly bar is divided into square and regular hexagon, which are most used in oil drilling Kelly is about three times thicker than drill pipe and made of high strength alloy steel, so it has high tensile strength and torsional strength.
Sanjack: Your Best Place To choose Kelly bar In China
Our Kelly bars also have various types to fit different environments and applications.
Sanjack: The Advantages With Us You Should Know
The company has an R & D center with a team composed of domestic authoritative professors and senior engineers to provide users with high-performance and practical products.
