| Unit type C | |||
 |
|||
| Unit type C consists of the following parts. | |||
| Part name | Parts photo | Number of parts | Number of cassettes |
| Triple cassette c3 |
 |
X 2 | 6 |
| Quadruple cassette c4 |
 |
X 1 | 4 |
| Reinforced Quadruple cassette rc4 |
 |
X 1 | 4 |
| Braces made from a cassette case b4 |
 |
X 1 | - |
| Total | 4 | 14 | |