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| Frame | Model type | Establish year | Name |
| Model AF01 |
| 1000036 | NH50MC MC | 1982 | lead 50 |
| NH50MC MCD | 1982 |
| 1300001 | NH50SSD 1 | 1983 | lead 50s |
| NH50SSD 2 | 1983 |
| 1328139 | NH50MDD 1 | 1983 | lead 50 |
| NH50MDD 2 | 1983 |
| Model AF08 |
| 1000016 | NH50MDE | 1984 | lead 50 |
| Model AF10 |
| 1000013 | NH50MSE | 1984 | Lead 50 SS |
| 1200013 | NH50MSG | 1986 |
| 1200021 | NH50MRG | 1986 | Lead 50R |
| 1225001 | NH50MSG | 1986 | Lead 50 SS |
| 1225006 | NH50MRG | 1986 | Lead 50R |
| Model AF20 |
| 1000001 | NH50MJ K | 1988 | lead 50 |
| 1100001 | NH50MN K | 1992 |
| 1200001 | NH50MP J | 1993 |
| Model AF48 |
| 1000001 | NH50W 2J | 1998 | lead 50 |
| NH50W J | 1998 |
| 1100001 | NH50X 2J | 1999 |
| NH50X J | 1999 |
| 1200001 | NH501 2J | 2001 |
| NH501 3J | 2001 |
| NH501 J | 2001 |
