| Artist | : | How Gate Valves Work | Gate Valve Assembly | Gate Valve working principle |
| Title | : | Qisma & Naila |
| Duration | : | 215 |
| Source | : | Youtube |
| Type of file | : | Audio/Video (.mp3 .mp4) |
| Artist | : | How Gate Valves Work | Gate Valve Assembly | Gate Valve working principle |
| Title | : | Qisma & Naila |
| Duration | : | 215 |
| Source | : | Youtube |
| Type of file | : | Audio/Video (.mp3 .mp4) |