The bonding technique was applied in maintenance of hydraulic workover rig and drilling pumps too.
还介绍了在液压修井机和钻井泵维修过程的应用情况。
By using Shengli No 3 offshore platform as an example, the importance and procedure of maintenance of the hydraulic systems of the top drive drilling rig are introduced.
以胜利三号平台为例介绍了顶驱钻机的维护系统及其重要性。
The sales, maintenance and service of rotary drilling rig drill rod;
旋挖钻机钻杆的销售、维修、服务；
The sales, maintenance and service of rotary drilling rig drill rod;
旋挖钻机钻杆的销售、维修、服务；
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