ข้องอเกลียวใน
(Famale Thread Elbow)
| Code | Size mm. |
| G8090gB-20.1/2 | D20-1/2 |
| G8090gB-20.3/4 | D20-3/4 |
| G8090gB-25.1/2 | D25-1/2 |
| G8090gB-25.3/4 | D25-3/4 |
| G8090gB-32.3/4 | D32-3/4 |
| G8090gB-32.1 | D32-1 |