6 Different Variations

3 different textures x 2 different reflections:
-Glossy
-Semigloss

Seamless textures
8192 x 8192 Pixel High-resolution textures
It’s detailed enough for close-up rendering.

Maps:
Diffuse x3
Roughness x1
Normal Bump x1

Pre-rendering with Corona 9.
It contains an OBJ file material library and MAX 2018 files.
!!The file doesn’t contain studio and shader ball!!

Material Collection:
https://3dsky.org/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.