Trubky obdélníkové
| ROZMĚR | HMOTNOST kg/mb |
|---|---|
| RET 28x18/2,5 | 0,4 |
| RET 40x25/3,0 | 0,7 |
| RET 51x25/3,0x3,0 | 0,79 |
| RET 51x25/6,4x6,4 | 1,54 |
| RET 55x25/3,0x5,0 | 0,8 |
| RET 59x25/3,0 | 0,8 |
| RET 73x25/3,0x5,0 | 1,1 |
| RET 80x60/5,0x5,0 | 2,5 |
| RET 91x38/4,0x4,0 | 1,78 |
| RET 112x91/6,4x6,4 | 4,46 |
| RET 120x45/3,0x3,0 | 2 |