tender for erection and laying of a 900-meter, 3rd range ms pipeline (8 diameter- 1 erection of 900 mtr. 3rd range pipeline (8’’), for dewatering of mine sump at giridih open cast at giridih area 2 loading transporting and unloading of pipes 3 laying of pipes as required 4 fitting of pipes (i) for welded joints 5 fitting of pipes (ii) for flanged joints 6 jointing of pipeline (i) for welded jointsa) a. weld edge preparation by cutting and making edgesweldable 7 jointing of pipeline b) welding by electrode 8 (ii) for flanged joints a) supply and welding of flages (8\) 9 b) inserting rubber joint arranging flanged pipes andbolting flanges 10 fitting & fixing of non return valve 8\ dia 11 fitting fixing of sluice valve 8\ dia 12 supply and providing m.s. nut bolts of different size. 13 supply and cutting of rubber joints for joining pipes end toend (8\) 14 supply of coupling bolts with bush (2000 gpm pumps) 15 supply and fitting of fixed ms/steel coupling (as required) 2 16 hiring of excavator (jcb) for loading & shifting of pump, motor, pipe & other associated accessories