hinged casing slip 铰链式套管卡瓦
pipe casing slip joint 套筒式伸缩器
pneumatic casing slip 气动套管卡瓦
Tubing and Casing Slip Hangers 油管和套管卡瓦悬挂器
slip joint casing 套接套管
double-slip casing bowl 双套卡瓦打捞筒
slip type casing spider 卡瓦型套管卡盘
slip casing bowl 双套卡瓦打捞筒
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