heavy rod rolling line 大盘条生产线
extra-heavy wash rod 特重冲洗管
heavy duty drill rod 重型钎杆
heavy-duty drill rod 重型钎杆
Heavy-duty connecting-rod 大型连杆
heavy calibre drill rod pipe 大口径钻杆管
After lower part installs the horizontal screw rod, but can also cause the heavy item to make the small distance to move horizontally.
下部装上水平螺杆后，还能使重物作小距离横移。
Available in a range of bore sizes, strokes, and rod diameters, Parker Tie rod Cylinders are rugged and reliable, able to meet medium and heavy duty application requirements.
可用范围内的一孔大小，笔画，和杆直径，帕克拉杆缸是坚固，可靠，能够满足中型和重型应用需求。
The specification and length of super-heavy steel rod can be designed effectively after in-putting the oil well data, and all the information can be stored in each corresponding database.
通过输入油井工况数据，利用该软件可有效设计出配重杆的规格及长度等施工数据，并能预测产液量，同时所有信息都能及时存放到各自对应的数据库中。
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