The Floormen engage the rig tongs on the drillpipe or tubular tool joint. (The breakout tong is placed on the top tool joint and the makeup tong is placed on the bottom tool joint).
英
美
- 钻工在钻杆或管子接头上上打上大钳(内钳打在上方接头上,外钳打在下方接头上)。