Mining infrastructure.
Drawing labels, details, and other text information extracted from the CAD file (Translated from Spanish):
date :, plane :, ing. alonso herrera viancha, digitalizo:, I review :, holder :, I made :, uniminas ltda, municipality of guacheta, department of cundinamarca, jaime becerra julio carlos cardenas gallo gustavo sierra albarracin jorge isaac muñoz maestre