Stamen chair:
575 x 595 x H 805 mm
https://www.pointernety.ru/product/stul-stamen-tkan-davis-retro-bliss-02-svetlo-bezhevyy-chernyy-karkas-disaur/ 


Without Turbosmooth modifier:
Polys: 2,106
Verts: 2,171
With Turbosmooth iterations 3 modifier:
Polys: 268,736
Verts: 134,950

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 PBR into account.