| 1. | Diamond core drilling equipment wire line system
金刚石绳索取心钻探钻具设备 |
| 2. | Diamond core drilling equipment - wire line system
金刚石绳索取心钻探钻具设备 |
| 3. | Diamond core drilling equipment conventional system
金刚石岩心钻探钻具设备 |
| 4. | Glossary of terms for drilling equipments and tools
钻探设备和工具术语汇编 |
| 5. | Rock drilling equipment . hollow drill steels in bar form
凿岩钎杆用中空钢 |
| 6. | The international market for directional drilling equipment
水平定向钻进设备的国际市场 |
| 7. | Rock drilling equipment - hollow drill steels in bar form
凿岩钎杆用中空钢 |
| 8. | Rock drilling equipment ; terminology
岩石钻孔设备.术语 |
| 9. | Drilling equipment hand - held rock drill
手持式凿岩机 |
| 10. | Specification for drilling equipment
钻井设备规范 |
