Miranda Dining Chair:
505 x 580 x H 870 mm
https://cheboksary.inmyroom.ru/products/1865034-obedennyj-stul-miranda-bezhevogo-cveta 

Without Turbosmooth modifier:
Polys: 5,508
Verts: 5,553
With Turbosmooth iterations 2 modifier:
Polys: 175,328
Verts: 88,032

The Turbosmooth modifier with Isoline Display was applied to the required objects;
There is an FBX file (if necessary, apply the Turn To Poly modifier to the FBX file);
For Corona render, it is recommended to install version no lower than 1.5, since the glossiness of materials is configured taking into account PBR.