| 摘要 |
A frame includes a pair of stiles and a pair of rails. A first stile has a first top surface, a first bottom surface, a first exterior surface and a first interior surface. A second stile has a second top surface, a second bottom surface, a second exterior surface and a second interior surface. First and second rails are joined to the first and second stiles. A reinforcement member is joined to the first interior surface. |
