| 摘要 |
A frame which is for mounting windows or pre-hung doors in openings of an existing structure and which includes an extruded metal or plastic outer frame, a wooden frame for the support of the extruded outer frame, fasteners which are used for attaching the outer frame at a window or door opening, and a molded cover which is secured to the outer frame and conceals the fasteners attaching the frame to the structure.
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