TB casing backup tongs can be used with various casing power tongs currently used in oil fields for casing running operations. They can improve the quality of pipe thread connection, reduce the deformation of the main tongs during large torque operations, improve the safety and reliability of operations, reduce the labor intensity of workers, and improve operating efficiency. The product has two control modes: full gas control and hydraulic control. It is equipped with a torque sensor to accurately measure the torque of the pipe connection. The table shows the backup tong parameters. The power tongs comply with the SY/T5074 standard.