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- NJ-S Series Manual Tubing/Casing Hydraulic Bucking UnitNJ-S series manual casing/tubing hydraulic bucking unit features compact structure and easy operation, applicable to the repair of tubing or non-automatic production line equipment in tubing plant.
- NJ Series Hydraulic Bucking UnitNJ series hydraulic bucking unit is used in the manufacturing of tubing and casing and it is designed for make-up and break-out operations of API threads and special threads with shoulder. The gripping mark depth is less than 0.1mm.
- Open-throat Backup Tong Hydraulic Bucking UnitNJ-BK hydraulic bucking unit is an important tool suitable for make-up, break-out and maintaining of the thread connections of drill tools, pipe strings and downhole equipment in petroleum exploration and geological prospecting.