ZTQ series dual-purpose power tongs are suitable for tripping and casing operations during drilling in oil fields. They are new power tongs independently developed by our company according to the needs of oil field users. This type of power tongs integrates the functions of drill pipe power tongs and casing power tongs. It can not only meet the needs of frequent tripping and drilling or single-thread connection in drilling and workover operations, but also can perform casing operations for small-diameter casings. There is no need to replace equipment, it is easy to use, improves wellhead operation efficiency, and reduces the labor intensity of workers.