4-way lightened concrete duct 90mm Diam. X 1m long.

Description

Light-belated concrete duct of 4-way diameter, 1M length, made at the ends with concrete of 210 kg / cm2 of resistance to compression and in the central part with expanded polystyrene lightened concrete, besides Corrugated 1/4 “diameter, used for the crossing of vehicular traffic roads with underground electric power distribution networks in low and medium tension. Ref. Flat DNC-318