| PRO33C200 - PRO34L1000 | |
| PRO | This letter indicates products PRO-truss |
| 3 | Second letter determines the width of the construction in cm (3=29cm) |
| 4 | Figure after letters determines how many tubes has the construction |
| L | Stands for lenght in mm |
| C | Stands for corner |
| 1000 | Length in mm |
| 210 | Type of corner |