| 摘要 |
A window shade designed to compete in the roller shade and venetian blind market includes a pair of pleated sheets spaced apart in substantially parallel array by top and bottom support members. Each layer includes a vacuum deposited aluminized surface, and the shade layers are arranged so that the corresponding aluminized surfaces face one another within the shade so that the shade has a significant resistance to heat loss or gain, if properly installed, and is decorative and distinctive in appearance.
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