| 1. | Drill rig for safe engineering in coal mine 煤矿井下安全工程钻机 |
| 2. | Series ygl track - type anchoring drilling rig 工程钻机分为: |
| 3. | Fundamental debate on fault diagnoses of the hydraulic pump 2000型全液压锚固工程钻机液压系统故障分析与排除 |
| 4. | Engineering drilling rig 大口径工程钻机 |
| 5. | 1 yg - 30 drilling rig is a full hydraulic operated top drive power head drill 1 yg - 30型工程钻机为全液压驱动动力头式钻机。 |
| 6. | Yg - 100 drilling rig 型锚固工程钻机 |
| 7. | Yg - 80a drilling rig 型锚固工程钻机 |
| 8. | Yg - 60 drilling rig 型锚固工程钻机 |
| 9. | Yg - 80 drilling rig 型锚固工程钻机 |
| 10. | Yg - 50 drilling rig 型锚固工程钻机 |