7 Different Color Variations

-Gold
-Brass
-Bronze
-Copper
-Rose Gold
-Silver
-Black Metal

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

Maps:
Diffuse x7
Roughness
Normal Bump (PNG)
AO

Pre-rendering with Corona.
__ materials were converted to Vray using a Vray-converter! __
!!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.