| Part No. | Inner height (mm) | Inner width (mm) | Bending radius (mm) |
| GNCC2525 | 25 | 25 | 40,55,75,100,125,150 |
| GNCC2538 | 25 | 38 | 40,55,75,100,125,150 |
| GNCC2550 | 25 | 50 | 40,55,75,100,125,150 |
| GNCC2557 | 25 | 57 | 40,55,75,100,125,150 |
| GNCC2575 | 25 | 75 | 40,55,75,100,125,150 |
| GNCC2577 | 25 | 77 | 40,55,100,125 |
| GNCC25103 | 25 | 103 | 40,55,75,100,125,150 |