Renders for preview are made in Corona Render 10
On the Corona Legacy Mtl model

Objects are modeled for anti-aliasing, turbosmooth modifier is assigned:
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Renderers — 2
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Boucle material - seamless textures in resolution 4096x4096px

Export to OBJ is done without using turbosmooth modifier

All textures, materials and objects are logically named

Set composition:
3 Lukas Westwing Collection upholstered chairs in boucle in 3 shades
∘ Terracotta Boucle
∘ Taupe Boucle
∘ White Bowl
Dimensions of one chair:
49x54x81 cm

https://www.westwing.fr/en/boucle-upholstered-chair-lukas-en-25wes89559.html 

The model is suitable for the kitchen, dining room, living room, cafe, coffee shop, pastry shop, living space, reception

"For Corona Render: it is recommended to install version not lower than 1.5, since the glossiness of materials is configured taking into account PBR."