It is a 3D model of a type 3 sewer; 3/8 reinforced with iron cuts and a 3D model of it.
Drawing labels, details, and other text information extracted from the CAD file (Translated from Spanish):
Body type sewer, Reinforced with iron
Raw text data extracted from CAD file:
Drawing labels, details, and other text information extracted from the CAD file (Translated from Spanish):
Body type sewer, Reinforced with iron