| Frame | Model type | Establish year | Name |
|---|---|---|---|
| Model ST70 | |||
| 1000001 | ST70K1 1 | - | Ducks 70 |
| 100001 | ST70Z | 1969 | |
| 3000001 | ST70K1 3 | - | |
| 4000001 | ST70K1 4 | 1971 | |
| 5000001 | ST70K1 5 | 1972 | |
| 500001 | ST70E | 1969 | |
| ST70EZ | 1969 | ||
| 531931 | ST70EZ | - | |
| 6000010 | ST70K2 3 | - | |
| ST70K2 4 | - | ||
| ST70K2 5 | - | ||
| 6100023 | ST70K3 3 | - | |
| 6100028 | ST70K3 5 | - | |
| 6200001 | ST70K4 7 | 1976 | |
| 6200006 | ST70K4 6 | 1976 | |
| 7000001 | ST70H | - | |