In acciaio legato con superfici di appoggio rettificate.
Steel alloy with ground supporting surface.
| ø | D | H | CODE |
| mm | mm | mm | |
| 20 | 28 | 2 | 9920202802 |
| 20 | 28 | 5 | 9920202805 |
| 20 | 28 | 10 | 9920202810 |
| 25 | 35 | 2 | 9920253502 |
| 25 | 35 | 5 | 9920253505 |
| 25 | 35 | 10 | 9920253510 |
| 30 | 50 | 2 | 9920305002 |
| 30 | 50 | 5 | 9920305005 |
| 30 | 50 | 10 | 9920305010 |
| 30 | 50 | 20 | 9920305020 |
| 30 | 50 | 50 | 9920305050 |
| 35 | 55 | 2 | 9920355502 |
| 35 | 55 | 5 | 9920355505 |
| 35 | 55 | 10 | 9920355510 |
| 35 | 55 | 20 | 9920355520 |
| 35 | 55 | 50 | 9920355550 |
| 40 | 60 | 2 | 9920406002 |
| 40 | 60 | 5 | 9920406005 |
| 40 | 60 | 10 | 9920406010 |
| 40 | 60 | 20 | 9920406020 |
| 40 | 60 | 50 | 9920406050 |
