New corner kitchen named Mats designer Olga D.
The model is assembled in a group with the prefix [G] consists of several objects each object consists of many elements and has multimaterial. There are also 5 light sources in the scene.
Materials textures objects and groups have been renamed the version of materials for Corona Render is made using the converter check them in a separate scene you will also have to adjust the brightness of the light source yourself.

Dimensions of the kitchen (HxWxD): 2650 x 3820 x 3190 mm
The kitchen consists of:
– kitchen Mats;
– Oven MIELE H7840BPX black;
– Oven MIELE H7860BPX black;
– ceramic electric hob MIELE KM 7404 FX;
– Sink BANCO Subline and mixer Bluewater Bergen;
– mortise hood made of stainless steel ELICA ELIPLANE LX IX F-60.
MIELE ovens in different colors: https://3dsky.org/users/mr_spoilt/models 

There are no materials in the OBJ file only geometry.

Who works in the V-Ray version lower than 3.1 be careful in the materials in the BRDF section there is Microfaset GTR (GGX) if your version is older than 3.1 then the BRDF field will be empty. Choose Blinn Phong or Ward – which is preferable for you.