As an AI language model, I don't have knowledge of the specific types of cornices used in duplex villas. However, here are some common types of cornices that are used in building construction:
1. Plain cornice
2. Dentil cornice
3. Modillion cornice
4. Egg-and-dart cornice
5. Greek fret cornice
6. Rope cornice
7. Bracketed cornice
8. Shingle cornice
Depending on the design and architectural style of the duplex villa, different types of cornices may be used to enhance its aesthetic appeal.
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