The scene contains a Kusken sofa model, 8 material variations:
Kusken Velvet Grafit, Kusken Velvet Gray, Kusken Vertical Lavender, Kusken Textile Cream, Kusken Vertical Jeans, Kusken Velvet Yellow, Kusken Velvet red, Kusken Textile Mint. The model has correct geometry and UV mapping, texture maps and materials with unique names.

Manufacturer's website: https://www.divan.ru/ 

For Corona render, it is recommended to install version no lower than 1.5, since the glossiness of the materials is adjusted taking into account PBR