Corona materials isn't converted from V-ray, It rebuilt from scratch in order to reach better result. Preview in first and second page got rendered with V-ray engine and preview in third and fourth page got rendered with Corona engine.
Rendered with V-ray version 5 and Corona version 5.
Originally modeled in Autodesk 3ds Max 2016.
This product is printable.
File scale and unit are set with a default value:
Display unit scale = Centimeters
System unit scale = Inches
Accurately full unwrapped.
Polygons [in high poly & low poly]:
Low poly: 6K
High poly: 51K
Dimension:
X: ~ 37 cm
Y: ~ 20 cm
Z: ~ 24 cm
All textures are 4K PBR.
All objects in the scene are logically named and grouped and have their own material of the same name.
Archive include 3ds max V-ray and 3ds max Corona file, additionally .FBX Vray file and .FBX Corona file format and .STL file format.

Please ask if you have any questions.
We will be very grateful for your comment and feedback! This is very important for us! Thank you very much in advance!