In the scene there is a model of a wall-mounted hood made of polished stainless steel MIELE OD 399-7 898 mm hood width 898 mm depth 520 mm. The model consists of several elements everything is assembled into one object and multi-material is assigned. All materials were renamed and simplified as much as possible I converted the Corona Render materials and did NOT check them in the scene for rendering check the model in a separate scene. Large weight of the model due to the geometry of the grease mesh. There is a plane under the mesh with simulated mesh maps so you can always lighten the model? removing unnecessary geometry.

There are no materials in the OBJ and the file just geometry.

Who works in 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.

https://www.miele.com/ 
(WxD): 898 x 520 mm

Polys: 142382
Verts: 278626
Tris: 284020
Edges: 420177