| 摘要 |
The present utility model discloses a perimeter section for a casement window being defined by an elongated body comprising a horizontal base; a vertical wall extending upwardly from one side of said horizontal base, a narrow C-channel formed on top inner side of said vertical wall, a rib protruding on the lower inner side of said vertical wall, a sloped locking rib protruding upwardly from the opposed side of said horizontal base, and a broad C-channel formed on and extending downwardly from the bottom of said horizontal base. |
