Inner upsetting technology for thin wall drilling pipes was used in Series SQ high strength wirelinedrilling pipes.
研究开发成功的SQ系列高强度绳索取心钻杆首次采用了薄壁钻杆内镦粗技术。
2
For added holding and pulling strength, drive four nails through the snake and the drillingline, and wrap the snake with soft wire and tape the entire length.
为了增添抗拉强度,在穿接绳器的部位,再钉四个钉子,然后用铁丝和胶带包起来。
3
The driller ensures that the drillingline is wrapped with the soft wire or tape at both sides of the mark before cutting the drillingline with the hydraulic line cutter.