| 摘要 |
The frame construction consists of frame and joining pieces for holding fabric, and filter or film. Each frame piece comprises an extruded profiled strip having a length direction track (7) for flexible parts that secure the construction into place. A handle (8) is provided to aid installation and dismantling of construction. A cavity (9) is provided for locking ends of strip together. The joining pieces connect the strip ends to the closed frame. The fabric, filter or film is held in place by snap-fit parts (5,6). |
