Installing precast concrete retaining wall panels. Precast concrete is an method of manufacturing concrete panels and walls off-site in order to save costs and produce quality panels in a controlled facility. Follow us! :Engineering and Architecture #engineeringandarchitecture #engineering #architecture #civil #civilengineering #engineer #architect #architectural #architexture #arquitectura #animation #architecturelovers #engineeringlover #design #designer #mechanical #structural #project #archi