| 摘要 |
A corner key includes a first arm portion, a first engaging portion, a second arm portion, and a second engaging portion. The first arm portion has a first outer side-surface. The first engaging portion is disposed on the first outer side-surface. The second arm portion is connected to the first arm portion and has a second outer side-surface. The second outer side-surface is unparallel to the first outer side-surface. The second engaging portion is disposed on the second outer side-surface. |
