This is a system to hang standard 1x2 lumber from a t-bar or drop ceiling in order to attach a vinyl curtain. The idea was to create a cold and hot aisle for our data center. We used "L" shaped cup hooks for hanging the vinyl strips. I've attached the Fusion 360 files that were used to generate these. You can cycle through the history on those files to see the different versions and creations. The angled pieces are all custom and probably won't relate to anything you'd need.