| 摘要 |
An extruded thermoplastic member includes a first material, having a first color, and an accent strip, having a second color, coextruded with the first material in the form of a ridge extending outward between corners in the surface of the thermoplastic member. A valance is constructed using such a thermoplastic member, with two such ridges extending along curved portions extending along the top and bottom of the thermoplastic member. The curved portions are formed as parts of closed structures, facilitating a miter sawing process used to cut the thermoplastic member into a central portion and a pair of end portions for the valance.
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