5 Different Type Variations

Seamless textures
(8192 x 8192) & (4096 x 4096) Pixel High-resolution textures
It's detailed enough for close-up rendering.

Maps:
Diffuse x5 (8K)
Roughness x5 (8K)
Normal Bump x5 (PNG) (4K)
Height x5 (PNG) (4K)
AO x5 (8K)

Pre-rendering with Corona.
__ materials were converted to Vray using a Vray-converter! __
It contains OBJ file, material library, and MAX 2018 files.
The file doesn't contain studio and shader ball!!

Material Collection:
https://3ddd.ru/collection/shared/5266976 

Corona:
For Corona render, it is recommended to install a version of at least 1.5, since the glossiness of materials is configured considering PBR.
Vray:
Who work with V-Ray version lower than 3.1, pay attention to the materials section BRDF (Microfaset GTR (GGX)), if your version is older than 3.1 - this section will be empty, and you have to choose: Blinn, Ward, or Phong, dependence on the material.