| 1. | How to improve quality reliability of drilling tools
软件测试与软件产品的质量和可靠性 |
| 2. | Hardmetal carbide for geological exploration drilling tools
地质勘探工具用硬质合金制品 |
| 3. | The drilling tool should be measured precisely
请准确丈量钻具。 |
| 4. | Research on drilling tools of frozen soil
冻土钻削与冲击的研究 |
| 5. | An approach to the cause of failure of large diameter long - hole drilling tools
大直径深孔钻具失效原因探讨 |
| 6. | Wuxi drilling tools factory
无锡钻探工具厂建于 |
| 7. | Headquartered in shanghai , the production of electric shocks and drilling tools
总部位于上海，生产冲击钻等电动工具。 |
| 8. | Advanced bottom hole drilling tools and the rotary steering closed loop system
现代井下钻井工具及旋转导向闭环钻井系统 |
| 9. | Design features and characteristics of automatic steerable rotary drilling tools
美国自动旋转导向钻井工具结构原理及特点 |
| 10. | Unleash the drilling tools
卸开钻具 |
