Dining chair Ash, WestWing
https://www.westwing.nl/ash-wood-upholstered-chair-ash-5-en-24wes14485.html?simple=DEQ24WES14485-221761 
The manufacturer's catalog offers the option to choose your finish.
The model is made with Turbosmooth, the modifier is enabled (viewport display - 0 iterations, on render 1 iteration), in the OBJ file Turbosmooth is disabled.
Materials CoronaPhysicalMTL, CoronaLegacyMTL=CoronaMTL
Version Corona 11
In versions CoronaRender 6 and below
For CoronaLegacyMtl, a version of Corona Renderer no lower than 1.5 is required, as the maps are designed for PBR (roughness-metallic) usage.
All maps are designed for PBR roughness-metallic workspace.
Textures and materials have logical names.
Texturing UnwrapUVW