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胜利石油管理局纯梁采油厂最近研制成功一种新型抽油杆吊卡——YS-1型抽油杆吊卡。这种吊卡根据月牙式油管吊卡的工作原理,用内外月牙卡紧抽油杆本体,取消了
Shengli Petroleum Administration pure beam production plant recently developed a new type of sucker rod elevator - sucker-type sucker rod. This elevator according to crescent tubing elevator card work principle, with internal and external crescent card sucker rod body, canceled