SHELBOURNE DINING CHAIR by Mezzocollection

Corona 6, Vray 6.
The file contains one chair and 9 materials on spheres.

The object has a Turbosmooth modifier for ease of work in the viewport (0 iterations in viewport, 1 iteration in render).
In the OBJ, Turbosmooth is applied and collapsed.

(Polys 5658) without the Turbosmooth modifier, shown in the mesh.
Pivot, XForm, and UV mapping are set. Displacement is present.
The scene is in mm.

https://www.mezzocollection.com/en/products/upholstery/dining-chair/shelbourne-339/