In the scene there is a model of a black electric ceramic induction hob MIELE KMDA 7633 FR 806 mm with a built-in hood the width of the panel is 806 mm wide the depth is 526 mm. The model consists of several elements everything is assembled into one object and a multi-material is assigned. The hidden part of the hood is made schematically to indicate the dimensions. 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.

There are no materials in OBJ and FBX files only 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.