| 摘要 |
The system has a coupling unit (31) extended along a corner (7) of a wall (4). The unit is provided with a longitudinally extended lip (35). Another coupling unit (32) is extended along the corner (8) of another wall (3), and provided with a lip (36). A longitudinally removable closing section (50) has a C shaped section with two sides adapted for enclosing the lips, and to elastically hold the lips bound to one another. |
