| Frame | Model type | Establish year | Name |
|---|---|---|---|
| Model 374 | |||
| 200101 | GR80 1K9 | 1976 | GR80 |
| 500101 | GR80-2 1K9 | 1977 | GR80Ⅱ |
| 600101 | GR80 1K9 | 1979 | GR80 |
| Frame | Model type | Establish year | Name |
|---|---|---|---|
| Model 374 | |||
| 200101 | GR80 1K9 | 1976 | GR80 |
| 500101 | GR80-2 1K9 | 1977 | GR80Ⅱ |
| 600101 | GR80 1K9 | 1979 | GR80 |