Type spiral staircase of 14 steps.
Drawing labels, details, and other text information extracted from the CAD file (Translated from Spanish):
versus, sursum, Blvd Helbert, anapurna street, Blvd Helbert, street tengri kahn, ararat street, lot, Fracc. canoe, colony infonavit solidarity, cattle market, colony infonavit solidarity, details spiral staircase, front elevation, plant view, steel tube diameter of cms., helical stainless steel cms. of thickness., metal base for column support., wooden steps natural color., Npt, step detail, stainless steel tubular balusters of cms. of thickness., steel tube diameter of cms., metal frame, solid wood steps., plate for fixing screws.