Introduction to the Roa Case Pavilion: The case pavilion from the Roa region in France has four floors and is built with a new type of natural building raw material - a kind of fired clay that can be completely recycled. Covering the roof of the exhibition hall with vegetation can not only purify the air and regulate the temperature, but also delay water falling during heavy rains and provide timely drainage. The rose garden in front of the case museum shows visitors the most beautiful classical roses and modern roses in France.

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