Hiring Of Postal Service, Cadetería, Parcel And Sending Medications With And Without Cold Chain, For Headquarters And Issn Dependencies. The Purpose Of This Contract Is To Carry Out The Postal Service And Correspondence Distribution, Understanding As Such The Sending And Reception Of Envelopes, Reliable Communications, Postal Shipments 24 And 48 Hours, With And Without Acknowledgment Of Receipt, Simple Shipments, Letters Documents, Telegrams, International Shipments, Air And Terrestrial Packages, Shipments With Cold Chain, Medical Supplies, Orthopedic, And Motorcycle Service.