Acquisition Of Hdpe Pipe - Ntp-Iso 4427 Pe_100, Sdr 26 Pn6 Dn=355Mmx6Mt And Steel Plug Dn 355Mm For The Execution Of The Ioarr: Construction Of Conduction Channel And Works Of Art; In The Tayapac Irrigation System Of The District Of Pararin, Provin - Acquisition Of Hdpe Pipe - Ntp-Iso 4427 Pe_100, Sdr 26 Pn6 Dn=355Mmx6Mt And Steel Plug Dn 355Mm For The Execution Of The Ioarr: Construction Of Conduction Channel And Works Art; In The Tayapac Irrigation System Of The Pararin District, Recuay Province, Ancash Department With Cui: N° 2676