- spring pole rig
- 弹簧: spring; mechanical spring
- 钻杆: bull rod; bar; rod; drill st ...
- 机: machine; engine
- 拔钻杆机: rod puller
- 钻杆: bull rod; bar; rod; drill stem; drill pipe; jackrod (手持式风钻); bore rod; boring bar; drilling rod; drilling pipe; drill rod
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