| • drive tube boring | |
| परिचालन: manipulation operation steering running steerage | |
| ट्यूब: tube horizontal beam tube | |
| छेदन: pertusion section punctum puncture drilling | |
परिचालन ट्यूब छेदन अंग्रेज़ी में
[ paricalan tyub chedan ]
| • drive tube boring | |
| परिचालन: manipulation operation steering running steerage | |
| ट्यूब: tube horizontal beam tube | |
| छेदन: pertusion section punctum puncture drilling | |
