The Subject Is The Subject Of The Contracting Of The Supply Of Different Hydraulic Materials For The Company Of Aigües De Vilanova I La Geltrú, In Particular, Brass, Clamps, Unions And Universal Flanges, Necklaces, Heads And Bands, Valves, Hydrants And Suction Cups For The Maintenance Of The Drinking Water Network In Vilanova I La Geltrú, According To The Requirements And The Features Of The Particular Technical Prescriptions (Pptp) Of Each Of The Lots