... nozzle sinker 受油嘴 sinker bar 冲击式钻杆 lead sinker 铅锤 ...
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sinker bar guide 撞杆扶正器
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sinker bar WESTBANK 助钻杆
lead protection sinker bar 沉降片座
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Characteristics: Oil soaking CAM and connecting bar system; sinker with an eyelet to take unable-closed steel wire; let-off boxes control two rollers for positive let-off motion.
特点:油浸式凸轮连杆机构,地梳固定不摆动,带耳沉降片穿防闭钢丝,送经箱体分别控制二辊罗拉积极送经。
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