| Frame | Model type | Establish year | Name |
|---|---|---|---|
| Model GJ21A | |||
| 100001 | RG250EW | 1983 | RG250Γ (gamma) |
| Model GJ21B | |||
| 100001 | RG250EW-3 | 1985 | RG250Γ (gamma) |
| RG250EW-3C | 1985 | ||
| 104241 | RG250EW-3W | - | |
| 109655 | RG250EW-4 | - | |
| RG250EW-4C | - | ||
| 112346 | RG250EW-4W | - | |
| 119554 | RG250EWCH | - | |
| RG250EWWH | - | ||