A collection of over 400 high end metal shaders accurately tested to be production proven, featuring high resolution textures (diffuse, specular, bump, normal, displacement, alpha map, typical resolution up to 8K), chromatic variations of the same shader to quickly choose the one you need without tuning the color, all of that in a practical .lib4d file for the Content Browser in order to find easily what you are looking for.
Many shaders have been build in a modular way so that you can easily mix and match some characteristic to create even more great looking shaders.
Download the free catalog (high res or low res) to see every single shader inside the collection. Link to collection: https://www.cgtrader.com/3d-models/textures/architectural-textures/3drnb-metal-shaders-for-v-ray-5-cinema4d