| 摘要 |
The door has a frame with hollow profiles (2) made of aluminum alloy. The profiles are connected with two brackets at ends by an angled corner connection, which is made of zinc, in a hollow space (6). Parts of fastening units i.e. band parts (21, 22) cooperates with an outer wall (9) of the hollow profiles for bands. The corner connection comprises reinforcement and a seam of the hollow profile comprises a support at a surface of the outer wall that is formed normal to a line by connecting identical points of the band parts. |
