supply of miscellaneous materials for maintenance of different r.l.i schemes under kalyani (agri-mechanical) division , kalyani,nadia- 1 supply of best quality 150 mm(n.b.) m.s.g.i.e.r.w. pipe (4.8 mm wall thickness) as per is-1239(part-1)/2004 with latest amendments (medium duty) thereof duly welded on both sides of pipe on inside and outside with corresponding diameter of m.s. flanges (12 mm) as per is: 6392/71, table-17 with latest amendments thereof. both m.s.g.i.e.r.w.pipe & flanges should be isi certification marked. length of m.s.g.i.e.r.w. pipe should be 6 meter +/-10mm. flange thickness should not be less than 12 mm 2 supply of m.s. shaft for water pump (150 mm x 150 mm) for double bearing kilorskar pump - (as per sample provided).