Public Tender Vob/Aprovision Of Construction Services/Construction Contract According To Vob Improve And Produce 2,000 M2 Of Subgrade 1,400 M3 Of Soil Loosening And Loading 160 M3 Of Pipe Trenches Produce 130 M Of Plastic Pipe Dn 300 Produce 4 Trough Inspection Shafts 1,600 ...  More 2,000 M2 Improve And Produce Subgrade 1,400 M3 Loosen And Load Soil 160 M3 Make Pipe Trench Make 130 M Plastic Pipe Dn 300 Make 4 Trough Inspection Shafts 1,600 M2 Make Act, Acb, Acd