Floating concrete breakwaters 20 m long, 5 m wide, 1.8 m high, lateral keels, 69 tn weight, lower concrete slab and anchored with chains. Ronautica Marinas has built at its own facilities, transported and installed, 80 meters of floating concrete breakwaters supplied to the General Contractor López Cao, within the improvement of the shelter in the port of Portonovo, work promoted by Portos de Galicia.
