JR-2 tipo manguera metálica del rectángulo
| Tipo JR-2 | altura interna | anchura interna | Altura externa | anchura externa | Radio de doblez |
| 22m m | 32m m | 27.5m m | 36.7m m | 60m m | |
| 25m m | 50m m | 31.5m m | 54.5m m | 90m m | |
| 35m m | 60m m | 40.1m m | 64.4m m | 100m m | |
| 38m m | 73m m | 43.7m m | 77.8m m | 110m m | |
| 40m m | 80m m | 45.4m m | 84.7m m | 120m m | |
| 52m m | 102m m | 57.5m m | 107.8m m | 140m m | |
| 60m m | 120m m | 67.5m m | 127.7m m | 180m m | |
| 60m m | 130m m | 65.1m m | 134.4m m | 210m m |
China