Hire The Industrial Gas Service For The 4Th Air Brigade Of The Chilean Air Force, According To Institutional Need. Resolve The Need For The Iv Air Brigade, To Acquire The Industrial Elements To Conserve A Stock Of Gases, Which Allow Comply With Aerial Activities, In Such A Way As To Avoid Suspending Flights, Continue With The Maintenance Program, Among Others Essential Activities To Keep Aircraft Operational. (EXPIRED)

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