Here is my futuristic stairs construction element 16 (Green Version).
Demo-Video > https://youtu.be/phokTc0Zwk0
Textures in 4K:
3D-Model-Formats:
https://3dhaupt.com/2017/04/08/sci-fi-stair-set-basic-version/
Modelled in blender for the texturing I used 3d-coat.