As its structure character of beam pumping unit, vibration and noise happen on the joint of connection rod head and beam during operation.
游梁平衡抽油机由于其自身结构特点，在运行过程中，连杆上接头与横梁连接部分经常会出现振动和响声。
Casting steel container rotating lock axle rod-head fracture in machining screw.
铸钢锁轴在加工螺纹时轴杆端头断裂。
Casting steel container rotating lock axle rod-head fracture in machining screw.
铸钢锁轴在加工螺纹时轴杆端头断裂。
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