Here is my futuristic stairs construction element 12 (Orange Version). From my futuristic stairs collection.
Demo-Video > https://youtu.be/_6OolJ30kRQ
https://www.cgtrader.com/3d-models/architectural/other/modular-stairs-collection-orange-painted-metal
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.