supply of miscellaneous materials for maintenance of different r.l.i schemes under kalyani (agri-mechanical) division , kalyani,nadia supply of miscellaneous materials for maintenance of different r.l.i schemes. , supply of best quality150 mm dia foot valve leather washer (imperial/techno) suitable for 150 mm dia heavy dutyfoot valve (as per sample provided). , supply of ball bearing 6307 ( tata /hmt/skf make) , 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 out side 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 0.65 meter +/- 10mm. flange thickness should not be less than 12 mm. , 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 out side 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 0.5 meter +/- 10mm. flange thickness should not be less than 12 mm.