DUCT AIR CONDITIONING INSTALLATION IN DETAIL WITH SLAB; PARTS AND ORDER OF CONSTRUCTION.
Drawing labels, details, and other text information extracted from the CAD file (Translated from Spanish):
Pija rivet per side cm, Screw per face every cm, angle, Covered duct step, Galvanized sheet gauges, Sealant., Welding in units., Concrete fence., Outer cover deck., Duct., Dropper, Waterproofing., Maximum distance equidistant., Just like the duct.