supply of steam trap at iocl guwahati refinery supply of steam trap at iocl guwahati refinery , list of item(s) / work(s) as per tender documents , steam trap, 15nb, bpt 21 , steam trap,ball float,20nb,32 ball , steam trap-thermostatic,15 nb , steam trap-thermostatic,20 nb , steam trap, 20nb, ft 20-4.5 , steam trap, 25nb, ft 20-4.5 , steam trap, 40nb, ft 20-4.5 , spirax,15nb ball fl s-trap,ft14ci-10,ibr , spirax,20nb ball fl s-trap,ft14ci-10,ibr , s-trap,ball float,a216wcb,fl,300,2in,ibr , s-trap,ball float,a105,rf,150,1/2in , spirax,25nb ball fl s-trap,ft14ci-10,ibr , steam trap-thermodynamic,15 nb , stream trap td-3,3/4in , s-trap,th.dyn,sw,a105,1in,150,ibr , steam trap,thermo,td-3,spirax,15nb , steam trap,thermo,td-62,spirax,20nb , steam trap 25nb hp-45 , steam trap, 15nb, td-62 , steam trap 20nb td-62