Invitation In Negotiation Without Prior Publication Through Esidis For Supply Of Materials For The Rehabilitation Of Rural Roads Of The Municipality Of Lefkada Section 1: Supply Of Aggregate Materials (Sand 3A) And Section 2: Supply Of 50 Kg Portland Tvn Common Black Cement, Total Budget €261,930.59 Without Vat And €324,793.93 Including Vat. 24%, With The Award Criterion Being The Most Economically Advantageous Offer Based On Price.