foldable staircase 3d models
6131 3d models found related to foldable staircase.
Helical Foldable staircase
grabcad
grabcad
that is a Helical staircase that you can easily fold it up to indwelling less space.there is a joint on each step that allows you to fold that step up; i'm now working to make a mechanism to fold all steps up and i'll be grateful if somebody can help...