Description

Product features: G**5 high intensity drilling rod is manufactured with advanced frictional welding and thermal treatment, and has a perfect appearance after burnished by NC machine tool and special device. Each rod has been detected by magnetic powder, ultrasonic wave and electromagnetism, and then has a reliable quality. Every parameter satisfies the API criterion and it could be applied to drilling or exploitation of ********0 meters. Main application: Drilling rod is mainly applied to deepening well bore, transmitting torque and providing fluid circulation passage.