ߏߔߌ߲ߛߑߕߙߌߕߑߡߊߔ ߛߌ߲ߞߐ߲ OpenStreetMap

undergrd

ߔߊ߬ߔߘߊ߬ߦߊ߬ߟߊ ߘߌ߫ ߞߊ߬ߦߌ߯:
September 12, 2014
Last map edit:
September 16, 2020

Horizontal Directional Drilling.