คำอธิบาย
| Model | Model |
| SPEN6-4 | SPEN8-4 |
| SPEN8-6 | SPEN10-6 |
| SPEN10-8 | SPEN12-8 |
| SPEN12-10 | SPEN14-10 |
| SPEN14-12 | SPEN16-10 |
| SPEN16-12 | SPEN16-14 |
| Model | Model |
| SPEN6-4 | SPEN8-4 |
| SPEN8-6 | SPEN10-6 |
| SPEN10-8 | SPEN12-8 |
| SPEN12-10 | SPEN14-10 |
| SPEN14-12 | SPEN16-10 |
| SPEN16-12 | SPEN16-14 |