Gem Bids For Precast Culvert Size 2x2 Mtr For 7.45 Mtr Long At Km 0.00 To7.00, Precast Culvert Size 2x2 Mtr For 7.45 Mtr Long At Km8.00 To 15.00, Precast Line Drain 1.00 Mtrx Top 0.60 M Xbottom 0.30 Mtr And Height 0.60 Mtr For Km 1 To 5, Precastline Drain 1.00 Mtrx Top 0.60 M X Bottom 0.30 Mtr Andheight 0.60 Mtr For Km 6 To 10, Precast Line Drain 1.00 Mtrxtop 0.60 M X Bottom 0.30 Mtr And Height 0.60 Mtr For Km11-15