Tenders for Supply Of Hdpe Pipes Working Pressure Pe-80 Of Suitable Normal Pressure At Pn 4 Kgf/Sqmm Of Sizes Suitable For Hard Soil . The Size Of The Hdpe Pipe Shall Be Of 160 Mm Outer Dia And 6.2 To 7.1 Mm Wall Thick. Accepted Makes -Duke Pipes, Dolphin Poly, Eonn Plast India, Texmo Pipes, Capital Pipes Or Similar . Warranty Period: 30 Months After The Date Of Delivery