What technical fields has Obras Subterraneas researched?
Obras Subterraneas has researched the technical fields related to Civil engineering
What is Obras Subterraneas's total number of patents?
Obras Subterraneas has 5 patents in total.
What is Obras Subterraneas's official website?
Where is Obras Subterraneas's headquarters?
Who are Obras Subterraneas key executives?