| Artist | : | Functions of Wash Pipe in Top Drive System |
| Title | : | Drilling Formulas |
| Duration | : | 79 |
| Source | : | Youtube |
| Type of file | : | Audio/Video (.mp3 .mp4) |
| Artist | : | Functions of Wash Pipe in Top Drive System |
| Title | : | Drilling Formulas |
| Duration | : | 79 |
| Source | : | Youtube |
| Type of file | : | Audio/Video (.mp3 .mp4) |