Extraction And Transport Service Of Quarry Material (18,438.18 M3) For Project Fillings: Improvement Of The Interurban Road Transitability Service In The Leticia Sector - Puerto Rico District Of San Cristobal Of The Province Of Picota De - Service For Extraction And Transportation Of Quarry Material (18,438.18 M3) For Project Fillings: Improvement Of The Interurban Road Traffic Service San Cristobal District Of The Province Of Picota Of The Department Of San Martin.